Supporting Fire (Tactician) will inexplicably cause weapon swap regardless of configuration

Please test this thoroughly, using two spectres one bound to each weapon swap. In various scenarios simply pressing the keybind for supporting fire (regardless of whether the skill is usable or not, on cooldown or not) will cause a weapon swap to occur for no reason. This happens regardless of weapon swap configuration for supporting fire. This is reproducable with various configurations of spectre counts across both weapon sets.