Created attachment 233973 [details]
Output of "rhythmbox -d"

When editing the genres of internet radio stations, if the last station in a certain genre is moved to another genre, rhythmbox crashes with the following message:

(rhythmbox:15132): RhythmDB-WARNING **: trying to sync properties of non-editable file
**
RhythmDB:ERROR:rhythmdb-property-model.c:855:rhythmdb_property_model_delete_prop: assertion failed: ((ptr = g_hash_table_lookup (model->priv->reverse_map, propstr)))
Aborted (core dumped)

For a specific example, the Rock'n'Roll genre contains two stations:
Absolute Classic Rock (Broadband)
Absolute Classic Rock (Modem)

Right-click one, select "Properties..." and change the genre to "Rock".  This works fine.  But, do the same to the other one, and rhythmbox crashes.  If a genre has only one station, changing the genre causes a crash as well.

I've attached the complete output of "rhythmbox -d".