Hi Stefan, I'm still seeing failures when loading repositories on 1.9.x since the SHA1 collision handling changes and currently no nominations in STATUS that will change the behavior back to something that will work.
One of the repositories I see this problem with is the original test schema repository around merging that Mark Phippard created when we introduced Subversion 1.5, so it won't be hard to share a testcase. (https://ctf.open.collab.net/svn/repos/sharpsvn/trunk/src/SharpSvn.TestBuild er/Resources/MergeScenario.repos, 36 kbyte, username guest, no password) Are you still interested in working on a fix for this scenario? Bert