Nuke another wc-ng test failure: If we've got an obstructed add, the working revision should be unknown, not 0.
Nuke another wc-ng test failure: If we've got an obstructed add, the
working revision should be unknown, not 0.

* subversion/libsvn_wc/entries.c
  (read_entries): If a directory has status obstructed_add, set the revision
    as invalid.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@876806 13f79535-47bb-0310-9956-ffa450edef68

wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,wbond/subversion,wbond/subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,wbond/subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion