How to modify a pull request on GitHub to change target branch to merge into?

Question

I have a pull request that is requesting a merge into master from my branch, but the owner wants me to change the request to merge into a different branch from my branch.

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Answer 1

If your branch is (still) available remotely, you do not have to create a new branch locally.

• Select your branch (which bears the changes you are submitting) either directly from the drop-down menu or under "# branches" (https://github.com/account/project/branches).

• Click "New pull request". This lets you choose a new base (target) branch.

Here is a screenshot of Github's new interface:

I can submit a PR of branch UX against any fork/branch---it doesn't matter whether I previously submitted a PR for branch UX.