After finding myself baffled attempting to bring a feature branch up to date with development and failing, I've come to realize that the left-pane context menu item labeled “rebase current changes onto $somebranch” actually does the opposite of what its name suggests: it rebases the current branch to the state of $somebranch; in other words it rebases $somebranch onto (or into) the current branch, not the other way around. (Right?)

The preposition “onto” in the current text is misleading; it implies that the object of the sentence ($somebranch in my example) will receive the changes. In fact, it is the opposite that will occur. The absence of the current branch's name adds to the confusion.

A re-wording that improves the sentence structure and includes the name of the affected branch would afford a huge win for clarity. For example:

• rebase $currentbranch to head of $somebranch
• rebase $somebranch onto $currentbranch