update reinstalls components previously excluded?

I completed a program update and rebooted. After this, performance was terrible. TaskMgr shows AvastSvc at >50% constantly.

Went to “add/remove components” and found the cleanup tool and several other components enabled, although they had been removed previously.

I found this

https://forum.avast.com/index.php?topic=226892.0

“I believe I have seen this problem before and it was caused by the “Cleanup” component.
A recent update added Cleanup back into my installation - even though I had excluded it previously.”

Anyone else seen this behavior?