Comment 2 for bug 1945378

StacktraceTop:
 gtk_tree_model_get_valist (tree_model=tree_model@entry=0x55ab799fa450, iter=iter@entry=0x7fff138af1b0, var_args=var_args@entry=0x7fff138af0b0) at ../../../../gtk/gtktreemodel.c:1812
 gtk_tree_model_get (tree_model=0x55ab799fa450, iter=iter@entry=0x7fff138af1b0) at ../../../../gtk/gtktreemodel.c:1774
 style_scheme_changed (treeview=<optimized out>, dlg=0x55ab799b2420) at dialogs/pluma-preferences-dialog.c:674
 g_closure_invoke (closure=0x55ab799c2960, return_value=0x0, n_param_values=1, param_values=0x7fff138af3a0, invocation_hint=0x7fff138af320) at ../../../gobject/gclosure.c:810
 signal_emit_unlocked_R (node=node@entry=0x55ab7904fe20, detail=detail@entry=0, instance=instance@entry=0x55ab793cd3c0, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fff138af3a0) at ../../../gobject/gsignal.c:3741