Hiya, just a quick note to say that gimp-2.8.14 fails with gegl-0.3.0_pre20150304 (which installs in a separate slot from the gnome-overlay), so the dependency should be altered to make it strictly rely on either the slot or the specific version. If you want any further information, just let me know...
This was fixed 2 days ago, please resync :) *** This bug has been marked as a duplicate of bug 550108 ***