Following up on r1659395, properly initialize incoming_prop_changes member of new commit items created for pin-externals to allow committing with our non http-v2 support via ra_dav.
Following up on r1659395, properly initialize incoming_prop_changes member of
new commit items created for pin-externals to allow committing with our non
http-v2 support via ra_dav.

* subversion/libsvn_client/copy.c
  (queue_prop_change_commit_items): Initialize outgoing prop changes to
    avoid segfault.


git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1664653 13f79535-47bb-0310-9956-ffa450edef68

YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion,YueLinHo/Subversion