StacktraceTop:
g_type_check_instance_cast (type_instance=type_instance@entry=0x2cffb30, iface_type=48411616) at /build/buildd/glib2.0-2.39.4/./gobject/gtype.c:4003
picture_scaled (source_object=0x7f324001c790, res=0x33a1810, user_data=0x2cffb30) at bg-pictures-source.c:135
g_task_return_now (task=0x33a1810) at /build/buildd/glib2.0-2.39.4/./gio/gtask.c:1081
complete_in_idle_cb (task=0x33a1810) at /build/buildd/glib2.0-2.39.4/./gio/gtask.c:1090
g_main_dispatch (context=0x10a9fa0) at /build/buildd/glib2.0-2.39.4/./glib/gmain.c:3065
StacktraceTop: check_instance_ cast (type_instance= type_instance@ entry=0x2cffb30 , iface_type= 48411616) at /build/ buildd/ glib2.0- 2.39.4/ ./gobject/ gtype.c: 4003 object= 0x7f324001c790, res=0x33a1810, user_data= 0x2cffb30) at bg-pictures- source. c:135 buildd/ glib2.0- 2.39.4/ ./gio/gtask. c:1081 in_idle_ cb (task=0x33a1810) at /build/ buildd/ glib2.0- 2.39.4/ ./gio/gtask. c:1090 buildd/ glib2.0- 2.39.4/ ./glib/ gmain.c: 3065
g_type_
picture_scaled (source_
g_task_return_now (task=0x33a1810) at /build/
complete_
g_main_dispatch (context=0x10a9fa0) at /build/