Feature Request: Context menu for recent commits with fixup action

[maloguertin]

Feature suggestion

A context menu for the recent commits panel and one of the simple action that would be very useful is fixup. The only thing it would do is copy the commit message of the right clicked commit and preprend fixup! in front of it.

[joallard]

If some gherkin helps:

Given I have made two commits already
And I have staged files
When I right-click on the second last commit
And I click on "Fixup"
Then a commit is created with the message "fixup! #{other_commit_message}"

Not sure what tests would be needed here.

It is also possible to use git commit --fixup=<id>