mate-desktop/mate-file-manager — pull request #11 by NiceandGently (2012-05-02 17:43:50+00:00)
Title: fix obsoletes mime data in caja-folder-handler.desktop.in.in

Error:
16:28:40 : RPM Scriptlet: Warning in file "/usr/share/applications/caja-folder-handler.desktop": usage of MIME type "x-directory/mate-default-handler" is discouraged ("x-directory" is an old media type that should be replaced with a modern equivalent)

This is already in nautilus fixed.
http://git.gnome.org/browse/nautilus/commit/?id=e939b36481815dbdf4053dba070f17d02a1efc38