Fix T95706: Material asset not applied if appended and then linked

8f79fa9c6780 was an attempt to fix this already, but it didn't quite
work. Problem was that the tooltip was messing with the drop-box and
operator properties, setting the name property for its own internal
logic. This name property would then be used rather than the session
UUID to query the material, which gave the wrong material (linking can
result in multiple IDs of the same type with the same name). A followup
commit will further sanitize this.

1 files changed, 2 insertions, 3 deletions

diff --git a/source/blender/editors/space_view3d/space_view3d.c b/source/blender/editors/space_view3d/space_view3d.c
index e7732f07ed9..48abe71e35f 100644
--- a/source/blender/editors/space_view3d/space_view3d.c
+++ b/source/blender/editors/space_view3d/space_view3d.c
@@ -590,16 +590,15 @@ static bool view3d_mat_drop_poll(bContext *C, wmDrag *drag, const wmEvent *event
 static char *view3d_mat_drop_tooltip(bContext *C,
                                      wmDrag *drag,
                                      const int xy[2],
-                                     struct wmDropBox *drop)
+                                     wmDropBox *UNUSED(drop))
 {
   const char *name = WM_drag_get_item_name(drag);
   ARegion *region = CTX_wm_region(C);
-  RNA_string_set(drop->ptr, "name", name);
   int mval[2] = {
       xy[0] - region->winrct.xmin,
       xy[1] - region->winrct.ymin,
   };
-  return ED_object_ot_drop_named_material_tooltip(C, drop->ptr, mval);
+  return ED_object_ot_drop_named_material_tooltip(C, name, mval);
 }
 
 static bool view3d_world_drop_poll(bContext *C, wmDrag *drag, const wmEvent *event)