[Bug] Frame stepper does not reset mirror portal's transitions

[virushater111]

Describe the bug when going through a mirror portal and restarting (dying or menu), the transition gets paused on death and resumes on respawn and makes the playfield still flipped, going through a mirror portal in this state flips the player back to normal

To Reproduce 1: turn on frame stepper, 2: go through mirror portal 3: before transition ends, restart (again dying or menu) 4: on respawn, either transition resumes (tested on both release and latest nightly)

Expected behavior not resuming transitions after restarts

Screenshots N/A