Alter/ Maggie glitch in arenas

There is a bug that allows Maggie speed boosts and Alter tacticals to stay between rounds of arenas. The one with alter gates can be abused to allow an alter and her team to escape from the spawn area during buy phase. It is done from what I have seen by placing a portal just before the round ends on the spawn the alter is about to be in. This portal says and can be used to escape the spawn during buy phase.