From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.6)
Description of problem:
Starting gnome-file-types-properties does not allow the creation of
new MIME types.
Running it from the command line delivers the following in the terminal:
(gnome-file-types-properties:5874): GLib-GObject-WARNING **:
g_object_set_valist: construct property "is-add" for object
`MimeEditDialog' can't be set after construction
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Run gnome-file-types-properties
2. Click the "Add File Type..." button
3. Check terminal screen for result
Actual Results: No response from application, error dump on terminal
Expected Results: The "MimeEditDialog" should open, allowing the
addition of new MIME types.
FWIW, I don't see this using a newer (post FC2-test2 devel) snapshot
containing control-center-188.8.131.52-1 and glib2-2.4.0-1.