The default value for array options will be an array, so it is not suitable to use as the default when processing one of many values for a multi-value option. Using null seems appropriate here, as it indicates the absence of a value and also converts nicely to an empty string (as opposed to an empty array).
Fixes#7689
This PR was merged into the 2.1 branch.
Commits
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5b19c89 [Console] fixed unparsed StringInput tokens
635b1fc StringInput resets the given options.
Discussion
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[Console] fixes unparsed StringInput tokens
`StringInput` instances call `setToken` after constructor, `parse` method is called in constructor, so `StringInput` tokens where never parsed.
| Q | A
| ------------- | ---
| Bug fix? | yes
| New feature? | no
| BC breaks? | no
| Deprecations? | no
| Tests pass? | yes
| Fixed tickets | #6749
* 2.0:
[Yaml] fixed default value
Added Yaml\Dumper::setIndentation() method to allow a custom indentation level of nested nodes.
added a way to enable/disable object support when parsing/dumping
added a way to enable/disable PHP support when parsing a YAML input via Yaml::parse()
[Console] fixed input bug when the value of an option is empty (closes#6649, closes#6689)
Conflicts:
src/Symfony/Component/Yaml/Dumper.php
src/Symfony/Component/Yaml/Parser.php
src/Symfony/Component/Yaml/Tests/DumperTest.php
src/Symfony/Component/Yaml/Tests/ParserTest.php
src/Symfony/Component/Yaml/Yaml.php