I've rented for about seven years and never seen a clause like this. Advice is to change locks when you move in and put them back when you leave. The landlord

I've rented for about seven years and never seen a clause like this. Advice is to change locks when you move in and put them back when you leave. The landlord can't evict you because of this, and the only reason they'd know you've changed the locks because they've tried to enter the house when you're not there.