[Bf-blender-cvs] [3a98dc68120] master: Fix crash when dragging video into VSE timeline

[Richard Antalik]

Commit: 3a98dc681206bd37917d76f35bcb9b846bad09e9
Author: Richard Antalik
Date:   Tue Jan 10 16:12:13 2023 +0100
Branches: master
https://developer.blender.org/rB3a98dc681206bd37917d76f35bcb9b846bad09e9

Fix crash when dragging video into VSE timeline

Caused by NULL dereference in strip overlap handling (expand to fit),
because `time_dependent_strips` strip collection is not created.

Check if strip collection is provided in `query_right_side_strips()`.

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

M	source/blender/sequencer/intern/strip_transform.c

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

diff --git a/source/blender/sequencer/intern/strip_transform.c b/source/blender/sequencer/intern/strip_transform.c
index 58f41d7e180..1edc4b85f96 100644
--- a/source/blender/sequencer/intern/strip_transform.c
+++ b/source/blender/sequencer/intern/strip_transform.c
@@ -309,7 +309,7 @@ static SeqCollection *query_right_side_strips(const Scene *scene,
 
   SeqCollection *collection = SEQ_collection_create(__func__);
   LISTBASE_FOREACH (Sequence *, seq, seqbase) {
-    if (SEQ_collection_has_strip(seq, time_dependent_strips)) {
+    if (time_dependent_strips != NULL && SEQ_collection_has_strip(seq, time_dependent_strips)) {
       continue;
     }
     if (SEQ_collection_has_strip(seq, transformed_strips)) {