rendering range
The Allow Negative Frames option, introduced in rB21a2350248fd, allows
for negative frames, but this should only apply for playback and
animations, the rendering range should still be clamped to MINFRAME /
MAXFRAME, because rendering does not allow for negative frames. Preview
range should not be affected afaict (I am not aware of operators that
allow for rendering this range).
Maniphest Tasks: T81380
Differential Revision: https://developer.blender.org/D9112
ca38bce46a