Hello!
I have one big problem with merging - it falls on start with strange message: "Server sent unexpected return value (401 Authorization Required) in responce to PROPFIND request for '/svn/autogroup_projects/.../Data.sln'".
Really that folder is not exists in the branch, but we had it in trunc (it modificated separately). And that file is only one with property "svn:mergeinfo" and value is blank. And of course I have access to the SVN - 401 error code is very strange for me.