Blender crashes when rendering a scene strip that references a scene
with a GPU compositor active. This is because when rendering a scene
strip, a new render with a nullptr system GPU context is created for the
scene it references, which is then used for compositing.
Ideally, the strip scene would have its own context, but we can't ensure
its context because we are not in the main thread. The alternative is to
then identify scenes that will be rendered before hand and set their
renders before starting the job, which doesn't seem like a great
solution. So for now, we just use the DST context in those cases.
Pull Request: https://projects.blender.org/blender/blender/pulls/123057
b2a58bbdb4