bugfix

- duplicated script spaces would keep a pointer to the PyObject button list. (causing python errors with negative reference counts when freeing spaces)
- Exiting blender would crash when a UI was open because the ScriptSpaces button PyList was being free'd after python Py_Finalize was called.

1 files changed, 4 insertions, 1 deletions

diff --git a/source/blender/src/space.c b/source/blender/src/space.c
index 53962d9519b..a31bd457f47 100644
--- a/source/blender/src/space.c
+++ b/source/blender/src/space.c
@@ -6334,7 +6334,10 @@ void duplicatespacelist(ScrArea *newarea, ListBase *lb1, ListBase *lb2)
 			SpaceNode *snode= (SpaceNode *)sl;
 			snode->nodetree= NULL;
 		}
-
+		else if(sl->spacetype==SPACE_SCRIPT) {
+			SpaceScript *sc = ( SpaceScript * ) sl;
+			sc->but_refs = NULL;
+		}
 		sl= sl->next;
 	}