The `NC_SCENE | ND_FRAME` was originally added so that the sequencer
preview is redrawn so that the fps stops showing (2855485565).
Using this specific notifier has the side effect that it also causes a depsgraph
update in `wm_event_do_notifiers`. However, that is not necessary just to
trigger the redraw. Using the `NC_SPACE | ND_SPACE_SEQUENCER` notifier
also triggers the redraw without causing a depsgraph update.
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