Today, I came across this edit to one of my posts. The edit changed the formatting in an acceptable way, but then it changed
Assuming $x\ne0$
to
Assuming $c\ne0$
While this may have been a typo, if it had been made by a < 2k rep user, it likely would have been caught in the review process. Other that rolling back to the last correct edit, what, if anything, should be done when next time I encounter an edit like this?
Note: The example used is not really a great example of this, I only used this because it directly included me and happened recently. This question exists outside the bounds of the particular example I used.