Boot handle comes out every time one of the back doors is opened!

I’ve recently noticed that every time one of the back doors is opened the boot handle comes out and retracts back once the door is closed. This doesn’t open the boot. Just the handle comes out and retracts again.
Two weeks ago I had the alarm on the car changed to a new one.
Is this door handle trick normal? I have to say I’ve never noticed it before. The trick doesn’t occur when opening the front doors. The boot opens and closes normally without any problem.
Could this be related to the new fitted alarm?
Please advise.