Yes, there is value in that and it's a thin line. However if it affects external behavior it is some form of product decision, which eventually needs to be sign

Yes, there is value in that and it's a thin line. However if it affects external behavior it is some form of product decision, which eventually needs to be signed off and it has to be documented in some way. Of course a typo fix in a comment (to find something even more trivial than your VM example) doesn't need a process. But that's also not what I'd call a bug.