VCP: final (?) fix for tracking down copyfrom-rev entries.
After additional experimentation, it turns out SVN copyfrom-rev
is the rev the svn workspace is currently updated to when the
user does an svn rename, or an svn copy. Therefore, the source
revision is the last *active* revision from that source file.
In the event of an svn rename(), however, svn will report the
deleted revision first, prior to reporting the newly-added
revision. This confuses VCP's LAST_REV_BY_FILEBRANCH struct
and foces us to search back prior to the delete via some other
means.
Well, now we have that other means. Hopefully.
This should be the last fix to get things working with SVN
sources. I hope.