Duke3D: Considerable camera jitter when standing on moving sectors
This started with commit d8a523e5.
Note that any mod that uses camera movement not controlled by the player also shows similarly jittery effects after this commit, specifically when the player struct members
horiz are altered in CON code. The jitter and associated ill effects can be worked around by using
EVENT_DISPLAYROOMS, at least for singleplayer. But for multiplayer I believe this would break completely.