|= no common ancestry
|With this error message Gerrit rejects to push a commit for code
|review if the pushed commit and the commit at the tip of the target
|branch do not have a common ancestry.
|This means that your local development history and the development
|history of the branch to which the push is done are completely
|independent (they have completely independent commit graphs).
|This error usually occurs if you do a change in one project and then
|you accidentally push the commit to another project for code review.
|To fix the problem you should check your push specification and
|verify that you are pushing the commit to the correct project.
|Part of link:error-messages.html[Gerrit Error Messages]