As of last night's play of a new "Ardent" game with the 6th February update:
I still leave the prison with 4 muskets, which is odd as there are only 3 guards equipped with muskets. Officers sometimes get stuck with blademusket, usually because they've run out of ammo but not always. I also occasionally still auto-loot a blademusket from a dead guard. Converting a blademusket to musket and bayonet requires me to equip a loaded musket (so need to have at least 2 gunpowder and 1 musket bullet), equip the blademusket, then sheath the weapons.
No officers spawned extra muskets this time. Either it's fixed or it happens sufficiently rarely that they didn't get lucky this time.
I still leave the prison with 4 muskets, which is odd as there are only 3 guards equipped with muskets. Officers sometimes get stuck with blademusket, usually because they've run out of ammo but not always. I also occasionally still auto-loot a blademusket from a dead guard. Converting a blademusket to musket and bayonet requires me to equip a loaded musket (so need to have at least 2 gunpowder and 1 musket bullet), equip the blademusket, then sheath the weapons.
No officers spawned extra muskets this time. Either it's fixed or it happens sufficiently rarely that they didn't get lucky this time.