[PATCH] Merge tests -63 fails over ra_dav

[Kamesh Jayachandran <ka...@collab.net>]

Hi All,
Since r25341, single file(which is dead in the HEAD) merge fails.

The cause of the issue is r25341 attempts to retrieve the reflected 
merge from target on merge-source and refines the merge range to be applied.

To do this it runs 'mergeinfo' report on a ra_session given to it.

Our mergeinfo report could not understand anything other than repo root.

As the ra_session given to it is rooted to the merge source url, this fails.


I am attaching the patch to fix the same for broader review.( I am 
confused whether to fix mod_dav_svn or the client and document the same)

With regards
Kamesh Jayachandran