[ASM & Hex] Double Battle With 1 Pokemon (FR)

I'm sure everyone is aware that in fire red, if you enter a double battle with 1 Pokémon in your party or all but one of your Pokémon are fainted, then a glitch occurs in which you throw out the fainted Pokémon or a missigno anyway. Is anyone aware of some way of making it possible to enter a double battle with 1 Pokémon? Any help would be greatly appreciated.

Thanks

Before this thread dies, a solution to this problem could be an asm call before every trainer battle that switches the double battle bit of a specific trainer's bit field off when a trainer enters an area with one pokemon or on when that trainer has two. Is this possible through asm? Any help would be great!