I don't. I think implicit opening of a door is a really bad thing and it should be banned. Unlocking and opening are two entirely different actions and may affect puzzles. It's really no big deal for the player anyway. You just say UNLOCK DOOR. OPEN IT.
Even worse is when people expect a door to automatically be unlocked when it is opened. For example, imagine that you have to pick the lock with a paperclip in order to unlock the door. The player hasn't tweaked to that, but they happen to have the paperclip with them. They say OPEN DOOR (not even knowing that it was locked in the first place) and the door magically opens, thus solving a puzzle and the player doesn't even know that it was a puzzle or that they've just solved it.
And should the opposite be true? When you close a door, should it automatically be locked? There's no point having locked doors at all if you're going to automate everything.