If the PA Control Box isn't rotated to match the Fuel Chamber, it actually rotates itself to match.
This rotation triggered a rotation event, which in turn caused RescanParts() to run again, re-entrantly. This broke everything.
Fixed by adding a boolean to just guard against this.
* PA Fixes
Fix exception when opening UI if it has the power limiter warning displayed.
Fix it sometimes not detecting parts due to angles not getting normalized before comparison.
* Fix swapped out sprites for PA emitter P0 states
