fix for 2 crashes freeing masks

- freeing a mask from RNA BKE_libblock_free() twice on the mask.
- loading a new blend file would only free the mask and not unlink it from nodes - it would access freed memory.

1 files changed, 1 insertions, 1 deletions

diff --git a/source/blender/compositor/operations/COM_MaskOperation.cpp b/source/blender/compositor/operations/COM_MaskOperation.cpp
index a156dfc1d99..36b3f2023ae 100644
--- a/source/blender/compositor/operations/COM_MaskOperation.cpp
+++ b/source/blender/compositor/operations/COM_MaskOperation.cpp
@@ -93,7 +93,7 @@ void MaskOperation::initExecution()
 				frame_iter += frame_step;
 			}
 
-			BKE_mask_free(mask_temp);
+			BKE_mask_free_nolib(mask_temp);
 			MEM_freeN(mask_temp);
 		}
 	}