* subversion/libsvn_ra_serf/update.c
  (*): Revert r1555716 and r1556343. This resolves a very hard to reproduce but
    very real issue identified by Ivan. I'll implement a better fix after
    finishing the conversion of the update handling to the transition based
    xml parser.

git-svn-id: https://svn.apache.org/repos/asf/subversion/trunk@1556933 13f79535-47bb-0310-9956-ffa450edef68