Follow-up to r1717438: Make sure the revprop contents always remains valid as long as the props hash itself.
Follow-up to r1717438: Make sure the revprop contents always remains valid
as long as the props hash itself.

Reported by: philipm

* subversion/libsvn_fs_x/revprops.c
  (read_non_packed_revprop): Copy the contents string into the result pool
                             before building the props hash upon it.

git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@1717453 13f79535-47bb-0310-9956-ffa450edef68

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