981246ef4a
When source reference image is a single image type, selecting "sequence" mode for tracing image into grease pencil will result in a crash in `trace_end_job` because it's trying to finalize more frames than traced, now ensures tracing mode to be `Single` when reference image is single image type even when tracing mode selector is set to sequence. Pull Request: https://projects.blender.org/blender/blender/pulls/134981