Prevent svnadmin loads of partial dumps from possibly creating invalid mergeinfo where the start range > end range.
Prevent svnadmin loads of partial dumps from possibly creating invalid
mergeinfo where the start range > end range.

* subversion/libsvn_repos/load.c

  (renumber_mergeinfo_revs): Yet another fix for issue #3020; if we can't
   remap a mergeinfos start rev, then don't attempt to remap the end
   range.  We might succeed and load invalid mergeinfo.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@939361 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,wbond/subversion