I have rights to push to a GitHub repository. The rights are associated with one of my email addresses. I committed in sourcetree, and then tried to push to the github repository. It failed, because SourceTree was using the wrong email address (one of my other ones).
I have reconfigured Sourcetree to use the right email address in the repository settings, but it's ignoring that when I try to push the commit I've already made - and I can't figure out how to resolve this. reversing the commit says it's just going to create a new one, which leaves me in the same place.
How can I resolve this?