SVN Mergeinfo properties on paths other than the working copy root

Question

I have an SVN repository where I have trunk and a branch.

I intend to merge the trunk into the branch at regular intervals, however, when I do this I see many proper

Answer 1

At least one part of this bug was fixed in Subversion 1.5.5. From the 1.5.5 CHANGES file:

do not create mergeinfo for wc-wc moves or copies (r34184, -585)

That is, there was a bug in SVN prior to 1.5 where it would create mergeinfo entries that it didn't use and were superfluous.