Nonexistent mags on a AKM with drum mag when interrupting/continuing reloads.

I've had instances when using an AKM with a drum mag, quick reloading and interrupting the reload by switching to the secondary and then continuing the reload by switching back will put a nonexistent magazine into the gun. By nonexistent I mean the magazine is visually there and has completed the reload animation but will be completely empty.

When trying to reload again after the bug, the animation will be bugged causing the player to reload the magazine and pulling the bolt back multiple times with an actual reload of the gun desyncing with the animation putting bullets into the gun somewhere mid animation.