Fix merge of added file where cwd is not on the same device as the target wc.
Fix merge of added file where cwd is not on the same device as the target wc.

* subversion/libsvn_wc/update_editor.c (install_file): Try copying the file
  when moving fails.



git-svn-id: f8a4e5e023278da1e04e203c7fe051e3c4285d88@856367 13f79535-47bb-0310-9956-ffa450edef68

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