I do this with Bitbucket all the time. I just create a pull request for the "stacked" change and target it to the branch containing the original work. Once the

I do this with Bitbucket all the time. I just create a pull request for the "stacked" change and target it to the branch containing the original work. Once the original work is reviewed and merged, I retarget the stacked pr into the release branch. If the stacked change gets reviewed first for whatever reason, the diff is displayed correctly.