[Svnmerge] Obvious bugfix in VersionedProperty

[Giovanni Bajo]

Hi,

an anonymous contributor sent in this patchlet:

Index: svnmerge.py
===================================================================
--- svnmerge.py (revision 27789)
+++ svnmerge.py (working copy)
@@ -479,7 +479,7 @@
                  self._changed_values.append(new_value)
                  self.revs.append(rev)
                  self.values.append(new_value)
-                new_value = old_value
+                old_value = new_value

          # Indicate that we know nothing about the value of the property
          # after the range of the log.


It looks like pretty obvious to me; basically, VersionedProperty was 
caching more revisions than strictly necessary. It's not a correctness 
issue at this point AFAICT, this is why it was not noticed before.

Any comments?
-- 
Giovanni Bajo