[Bf-blender-cvs] [c6f47ffa98d] blender2.8: Fix T58117: Crash with keyframing

[Sergey Sharybin]

Commit: c6f47ffa98d3fe9c83b2e19b9310a133e842685b
Author: Sergey Sharybin
Date:   Tue Dec 4 11:28:23 2018 +0100
Branches: blender2.8
https://developer.blender.org/rBc6f47ffa98d3fe9c83b2e19b9310a133e842685b

Fix T58117: Crash with keyframing

===================================================================

M	source/blender/editors/animation/keyframing.c

===================================================================

diff --git a/source/blender/editors/animation/keyframing.c b/source/blender/editors/animation/keyframing.c
index 4bf6c43e348..9faa7a8e8cd 100644
--- a/source/blender/editors/animation/keyframing.c
+++ b/source/blender/editors/animation/keyframing.c
@@ -1392,7 +1392,12 @@ static short clear_keyframe(Main *bmain, ReportList *reports, ID *id, bAction *a
 		/* return success */
 		ret++;
 	}
-
+	/* In the case last f-curve wes removed need to inform dependency graph
+	 * about relations update, since it needs to get rid of animation operation
+	 * for this datablock. */
+	if (adt->action == NULL) {
+		DEG_relations_tag_update(bmain);
+	}
 	/* return success/failure */
 	return ret;
 }