diff --git a/src/Symfony/Bridge/Propel1/Form/ChoiceList/ModelChoiceList.php b/src/Symfony/Bridge/Propel1/Form/ChoiceList/ModelChoiceList.php
index 589c0235f5..a29ae0cd11 100644
--- a/src/Symfony/Bridge/Propel1/Form/ChoiceList/ModelChoiceList.php
+++ b/src/Symfony/Bridge/Propel1/Form/ChoiceList/ModelChoiceList.php
@@ -255,14 +255,14 @@ class ModelChoiceList extends ObjectChoiceList
      */
     public function getIndicesForChoices(array $models)
     {
+        $indices = array();
+
         if (!$this->loaded) {
             // Optimize performance for single-field identifiers. We already
             // know that the IDs are used as indices
 
             // Attention: This optimization does not check choices for existence
             if ($this->identifierAsIndex) {
-                $indices = array();
-
                 foreach ($models as $model) {
                     if ($model instanceof $this->class) {
                         // Make sure to convert to the right format
@@ -276,7 +276,30 @@ class ModelChoiceList extends ObjectChoiceList
             $this->load();
         }
 
-        return parent::getIndicesForChoices($models);
+        /*
+         * Overwriting default implementation.
+         *
+         * The two objects may represent the same entry in the database,
+         * but if they originated from different queries, there are not the same object within the code.
+         *
+         * This happens when using m:n relations with either sides model as data_class of the form.
+         * The choicelist will retrieve the list of available related models with a different query, resulting in different objects.
+         */
+        $choices = $this->fixChoices($models);
+        foreach ($this->getChoices() as $i => $choice) {
+            foreach ($choices as $j => $givenChoice) {
+                if ($this->getIdentifierValues($choice) === $this->getIdentifierValues($givenChoice)) {
+                    $indices[] = $i;
+                    unset($choices[$j]);
+
+                    if (0 === count($choices)) {
+                        break 2;
+                    }
+                }
+            }
+        }
+
+        return $indices;
     }
 
     /**
diff --git a/src/Symfony/Bridge/Propel1/Tests/Form/ChoiceList/ModelChoiceListTest.php b/src/Symfony/Bridge/Propel1/Tests/Form/ChoiceList/ModelChoiceListTest.php
index 748b1cd9b1..59f1367f2a 100644
--- a/src/Symfony/Bridge/Propel1/Tests/Form/ChoiceList/ModelChoiceListTest.php
+++ b/src/Symfony/Bridge/Propel1/Tests/Form/ChoiceList/ModelChoiceListTest.php
@@ -185,4 +185,18 @@ class ModelChoiceListTest extends Propel1TestCase
         $this->assertEquals(array(1, 2), $choiceList->getValuesForChoices(array($item1, $item2)));
         $this->assertEquals(array(1, 2), $choiceList->getIndicesForChoices(array($item1, $item2)));
     }
+
+    public function testDifferentEqualObjectsAreChoosen()
+    {
+        $item = new Item(1, 'Foo');
+        $choiceList = new ModelChoiceList(
+            self::ITEM_CLASS,
+            'value',
+            array($item)
+        );
+
+        $choosenItem = new Item(1, 'Foo');
+
+        $this->assertEquals(array(1), $choiceList->getIndicesForChoices(array($choosenItem)));
+    }
 }
diff --git a/src/Symfony/Component/Console/Application.php b/src/Symfony/Component/Console/Application.php
index d97ad35e67..a3998a82e7 100644
--- a/src/Symfony/Component/Console/Application.php
+++ b/src/Symfony/Component/Console/Application.php
@@ -129,9 +129,16 @@ class Application
             } else {
                 $this->renderException($e, $output);
             }
-            $exitCode = $e->getCode();
 
-            $exitCode = $exitCode ? (is_numeric($exitCode) ? (int) $exitCode : 1) : 0;
+            $exitCode = $e->getCode();
+            if (is_numeric($exitCode)) {
+                $exitCode = (int) $exitCode;
+                if (0 === $exitCode) {
+                    $exitCode = 1;
+                }
+            } else {
+                $exitCode = 1;
+            }
         }
 
         if ($this->autoExit) {
diff --git a/src/Symfony/Component/Console/Tests/ApplicationTest.php b/src/Symfony/Component/Console/Tests/ApplicationTest.php
index 60ea14154d..bc1f038bc6 100644
--- a/src/Symfony/Component/Console/Tests/ApplicationTest.php
+++ b/src/Symfony/Component/Console/Tests/ApplicationTest.php
@@ -573,6 +573,21 @@ class ApplicationTest extends \PHPUnit_Framework_TestCase
         $this->assertSame(4, $exitCode, '->run() returns integer exit code extracted from raised exception');
     }
 
+    public function testRunReturnsExitCodeOneForExceptionCodeZero()
+    {
+        $exception = new \Exception('', 0);
+
+        $application = $this->getMock('Symfony\Component\Console\Application', array('doRun'));
+        $application->setAutoExit(false);
+        $application->expects($this->once())
+             ->method('doRun')
+             ->will($this->throwException($exception));
+
+        $exitCode = $application->run(new ArrayInput(array()), new NullOutput());
+
+        $this->assertSame(1, $exitCode, '->run() returns exit code 1 when exception code is 0');
+    }
+
     /**
      * @expectedException \LogicException
      * @dataProvider getAddingAlreadySetDefinitionElementData
diff --git a/src/Symfony/Component/DomCrawler/FormFieldRegistry.php b/src/Symfony/Component/DomCrawler/FormFieldRegistry.php
index 5144ac739c..677a9aad31 100644
--- a/src/Symfony/Component/DomCrawler/FormFieldRegistry.php
+++ b/src/Symfony/Component/DomCrawler/FormFieldRegistry.php
@@ -204,8 +204,12 @@ class FormFieldRegistry
     {
         if (preg_match('/^(?P<base>[^[]+)(?P<extra>(\[.*)|$)/', $name, $m)) {
             $segments = array($m['base']);
-            while (preg_match('/^\[(?P<segment>.*?)\](?P<extra>.*)$/', $m['extra'], $m)) {
-                $segments[] = $m['segment'];
+            while (!empty($m['extra'])) {
+                if (preg_match('/^\[(?P<segment>.*?)\](?P<extra>.*)$/', $m['extra'], $m)) {
+                    $segments[] = $m['segment'];
+                } else {
+                    throw new \InvalidArgumentException(sprintf('Malformed field path "%s"', $name));
+                }
             }
 
             return $segments;
diff --git a/src/Symfony/Component/DomCrawler/Tests/FormTest.php b/src/Symfony/Component/DomCrawler/Tests/FormTest.php
index 43e4f372f9..61f89434eb 100644
--- a/src/Symfony/Component/DomCrawler/Tests/FormTest.php
+++ b/src/Symfony/Component/DomCrawler/Tests/FormTest.php
@@ -292,6 +292,18 @@ class FormTest extends \PHPUnit_Framework_TestCase
         }
     }
 
+    public function testSetValueOnMultiValuedFieldsWithMalformedName()
+    {
+        $form = $this->createForm('<form><input type="text" name="foo[bar]" value="bar" /><input type="text" name="foo[baz]" value="baz" /><input type="submit" /></form>');
+
+        try {
+            $form['foo[bar'] = 'bar';
+            $this->fail('->offsetSet() throws an \InvalidArgumentException exception if the name is malformed.');
+        } catch (\InvalidArgumentException $e) {
+            $this->assertTrue(true, '->offsetSet() throws an \InvalidArgumentException exception if the name is malformed.');
+        }
+    }
+
     public function testOffsetUnset()
     {
         $form = $this->createForm('<form><input type="text" name="foo" value="foo" /><input type="submit" /></form>');
diff --git a/src/Symfony/Component/HttpKernel/Bundle/Bundle.php b/src/Symfony/Component/HttpKernel/Bundle/Bundle.php
index c4ba0d1aab..215d1e1862 100644
--- a/src/Symfony/Component/HttpKernel/Bundle/Bundle.php
+++ b/src/Symfony/Component/HttpKernel/Bundle/Bundle.php
@@ -189,7 +189,7 @@ abstract class Bundle extends ContainerAware implements BundleInterface
                 $ns .= '\\'.strtr($relativePath, '/', '\\');
             }
             $r = new \ReflectionClass($ns.'\\'.$file->getBasename('.php'));
-            if ($r->isSubclassOf('Symfony\\Component\\Console\\Command\\Command') && !$r->isAbstract()) {
+            if ($r->isSubclassOf('Symfony\\Component\\Console\\Command\\Command') && !$r->isAbstract() && !$r->getConstructor()->getNumberOfRequiredParameters()) {
                 $application->add($r->newInstance());
             }
         }
diff --git a/src/Symfony/Component/HttpKernel/Tests/Fixtures/ExtensionPresentBundle/Command/BarCommand.php b/src/Symfony/Component/HttpKernel/Tests/Fixtures/ExtensionPresentBundle/Command/BarCommand.php
new file mode 100644
index 0000000000..b9a5417d94
--- /dev/null
+++ b/src/Symfony/Component/HttpKernel/Tests/Fixtures/ExtensionPresentBundle/Command/BarCommand.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Symfony\Component\HttpKernel\Tests\Fixtures\ExtensionPresentBundle\Command;
+
+use Symfony\Component\Console\Command\Command;
+
+/**
+ * This command has a required parameter on the constructor and will be ignored by the default Bundle implementation.
+ *
+ * @see Symfony\Component\HttpKernel\Bundle\Bundle::registerCommands
+ */
+class BarCommand extends Command
+{
+    public function __construct($example, $name = 'bar')
+    {
+
+    }
+}