Richard Antalik
a43d644dec
When cache is strip is invalidated, movie file was reloaded even if it isn't necessary. This caused significant performance issues when strip is being dragged under playhead. This was caused by calling `SEQ_relations_sequence_free_anim()` and it was introduced as fix for T36124. When it is necessary to reload file because another API holds reference to ImBuf, do this explicitly besides cache invalidation. In `rna_ColorManagedColorspaceSettings_reload_update()` this was already done, so no change is needed there. Reviewed By: sergey Differential Revision: https://developer.blender.org/D11024