Lock to my outer door was open and taped over. Possible break in attempt?

In my manshon building each unit has its own outer gate which encloses a tiny space in front of your unit. People can store luggage and what not here. Basically it's like a mini porch while also adding an extra layer of privacy between your genkan and the main hallway.

I just went out of my room a moment ago and noticed the outer door of this gate wasn't locked like usual. Then I noticed the hole for the lock to latch into was taped over completely with 2 layers of white tape.

I've lived here for so long I can't imagine there is suddenly a security compromise, but I struggle to imagine what else this could be. Is someone testing to see if someone actually removes the tape, then planning if they can break in or not accordingly? I'm wondering how they even opened the gate from the outside to begin with. Is this a common tactic for burglers here?

Not sure if I should report this to the police or not, but mildly freaking out here.

Edit: Sorry for the false alarm. I realized there's a notice out front of the building (not inside anywhere for some reason) indicating they need to make our spaces accessible for replacing the intercoms this week, thus will tape the door open.
I need to pay more attention to the notices around here from now on…

by columballs98