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Milan Bouchet-Valat authored
If the GtkComboBoxText doesn't have id-column or entry-text-column set for some reason (value -1), better warn and return. Else, unrelated assertions fail, and warnings from gtk_tree_model_get_column_type() are printed, which are not really obvious. https://bugzilla.gnome.org/show_bug.cgi?id=637018
02908345