On the reuse-ra-session branch: Reuse sessions created during externals processing in 'svn copy --pin-externals'.
On the reuse-ra-session branch: Reuse sessions created during
externals processing in 'svn copy --pin-externals'.

* subversion/libsvn_client/copy.c
  (pin_externals_prop): Release the external RA session.


git-svn-id: e84a316744199a3455081dfc07023ba2eb93344a@1662183 13f79535-47bb-0310-9956-ffa450edef68

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