Comment 2 for bug 1860151

StacktraceTop:
 glade_project_get_widget_by_name (project=project@entry=0x55bae351ba00, name=name@entry=0x55bae3d7f7e0 "label3") at glade-project.c:3618
 glade_property_class_make_object_from_string (string=0x55bae3d7f7e0 "label3", project=project@entry=0x55bae351ba00, property_class=<optimized out>) at glade-property-class.c:734
 glade_property_class_make_objects_from_string (project=0x55bae351ba00, string=<optimized out>, property_class=0x55bae454a6a0) at glade-property-class.c:756
 glade_property_class_make_gvalue_from_string (property_class=property_class@entry=0x55bae454a6a0, string=<optimized out>, project=project@entry=0x55bae351ba00) at glade-property-class.c:889
 glade_project_fix_object_props (project=0x55bae351ba00) at glade-project.c:1326