If you posted here yesterday about your game having issues with the Lua cameras, please do provide a link here to the affected game(s).
The rollback of this change is only temporary, so that I can fix the few issues we saw with the mouse cursor locking and with Poppercam running when it shouldn’t (e.g. when cameraType is Scriptable). If your game broke, and you have not made a copy of CameraScript in your place, problems you saw might not recur. If you have forked CameraScript, you will very likely need to merge in some changes.
If your game broke due to relying on WASD or RMB camera control in a Scriptable, Fixed, Watch, etc. That will break again and will stay broken and you have a bit more work to do. Cameras of these types are not supposed to respond to any user input that is not explicitly set up by the developer. MouseButton2 still working to rotate the camera in these modes was a long-standing bug in C++ code, code that is disabled by the Lua camera flag and is going to be removed.