SEGFAULT committing against tigris.org with HEAD client code.

I noticed tonight that my attempts to commit to the ViewVC repository on
Tigris.org are now failing due to a client-side SEGFAULT. So far, all I
know is that the failure is due to a call to svn_ra_serf__set_prop() (at
subversion/libsvn_ra_serf/commit.c:1470) with a NULL path. Because
Tigris.org is running 1.6.x code, this path comes via the !HTTPv2 branch of
the preceding logic, which deals with CHECKOUT requests and such.
Ultimately, it's a NULL baseline URL that's passed to the __set_prop()
function, eventually leading to the SEGFAULT in APR's hash code (NULL hash
keys aren't allowed).

This code has worked as recently as yesterday, as I was committing
successfully to ViewVC at that time.

-- 
C. Michael Pilato <cmpilato_at_collab.net>
CollabNet   <>   www.collab.net   <>   Enterprise Cloud Development