Fix T88551: Crash accessing uninitialized tool settings

Tool settings for sequencer were not initialized, which caused crash
when adding strips.

There was fix for same issue in versioning rB0f81dafe6cec, but
subversion was not bumped, so files with uninitialized tool settings
may still exist.

Add `SEQ_tool_settings_get()` accessor function that will initialize
tool settings if they are missing. Change operator code to use
`SEQ_tool_settings_fit_method_get()` function instead of accessing
tool settings directly

Reviewed By: campbellbarton

Differential Revision: https://developer.blender.org/D11383

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/sequencer/SEQ_sequencer.h b/source/blender/sequencer/SEQ_sequencer.h
index 85513faf3e6..236ca1a9195 100644
--- a/source/blender/sequencer/SEQ_sequencer.h
+++ b/source/blender/sequencer/SEQ_sequencer.h
@@ -54,6 +54,7 @@ enum {
 #define SEQ_DUPE_IS_RECURSIVE_CALL (1 << 4)
 
 struct SequencerToolSettings *SEQ_tool_settings_init(void);
+struct SequencerToolSettings *SEQ_tool_settings_ensure(struct Scene *scene);
 void SEQ_tool_settings_free(struct SequencerToolSettings *tool_settings);
 eSeqImageFitMethod SEQ_tool_settings_fit_method_get(struct Scene *scene);
 void SEQ_tool_settings_fit_method_set(struct Scene *scene, eSeqImageFitMethod fit_method);