Today I rejected this edit suggestion, as the suggested edit was not at all related, the user has edited the answer to add his question regarding same problem.
After My rejection it was approved by two other reviewers (I don't think they have even checked what the edit is suggested). After that I found one more edit from the same user and approved by same two reviewers, in this edit also user has added same I am having too problems.
I rollback both the answer to the first revision. What can we do to restrict such blind approvals?