This is a scenario I have encountered a few times when going through the edit suggestion review queue.
An asker posts a question and as context they provide some information that they used when trying to solve the problem. However, part of this information is just plainly wrong or perhaps misunderstood. It could be a simple typo or other errors. The error might not be critical for the question, but in some cases it is crucial. Then a user comes along and suggests an edit to correct the error.
One example, where the error made probably is not critical for the solution, is this question. The editor suggested to correct an error in the condition for convexity. I chose to reject the edit suggestion with the "deviates too much from the original intent" reason, since I thought it just might be a chance, although small, that the error was part of the reason for the OP to ask the question in the first place. Would you say that this was a correct assessment? For what it's worth, the edit was eventually approved by two other reviewers.
In general, how careful should we be when editing in corrections of the mathematics in a question, especially when it comes to the description of what has been tried by the OP? In my opinion, we should be very restrictive and post comments asking the OP for clarifications instead of just editing, even if it appears to be a glaring and blatant typo.