Copper Golem after checking 10 chests issue

The Copper Golem after checking 10 chests, gets stuck in a infinite loop checking the same chests.

My suggestion is:  after doing his 7 seconds idle animations, he should walk in one direction for a couple of blocks, so he can detects other chests that he didn't already checked.

Another way of fixing it would be increasing his detection range and not checking the last 10 chests he already opened.