1a72a0f22c
ED_area_newspace correctly changes an area's space when the type and subtype are set beforehand. But SCREEN_OT_space_type_set_or_cycle, when changing to a new editor rather than cycling, needs newspace to ignore the set subtype and use the last-used saved in the space. This situation cannot be tested for in newspace. Instead have the operator pass -1 as subtype to signal this intended behavior. Pull Request: https://projects.blender.org/blender/blender/pulls/135367