portray within debugger may not be debugged.

git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@423 b08c6af1-5177-4d33-ba66-4b1c6b8b522a

changes4.3.html

@@ -16,6 +16,8 @@
 
 <h2>Yap-4.3.21:</h2>
 <ul>
+	<li>FIXED: debugger could enter infinite loop if spying
+	portray (Steve Moyle).</li>
 	<li>FIXED: predicate_property(P,source) (Ines Dutra).</li>
 	<li>NEW: use system regex routines if available.</li>
 	<li>FIXED: profiling.</li>