What I do: we make sure that the tests done are testing the change request (a functionality added or a bugfix). Also I try to be in the mind of the end user and

What I do: we make sure that the tests done are testing the change request (a functionality added or a bugfix). Also I try to be in the mind of the end user and figure out if this is the thing I wanted. When we find something related, a Jira ticket associated with the feature is created with test procedure to reproduce it, and what is expected. This ticket will need to be fixed before release. When something unrelated is found, a Jira ticket is done with test procedure, but the expected behaviour may be missing. Then this is analysed (every 2weeks usually) to figure out the importance of the bug, or if it is really one (it might be a feature), then a priority is given on the issue. If it is not a bug, we make sure to write down in the ticket why it is not a bug. Chances are that someone else will find it and ask questions, and you will have the argument to counter it. Our end of the backlog is actually filled with insignificant issues, turns out noone complained about it so no need to spend time on it.