Checkbox for disabling `wait-for-build` doesn't show up when admin merging #3891

I can't really provide you with links, but the repro steps are as follows:

1. Make a PR on a repository that: a) has automatic checks (I have some of them be required, but not sure if that's needed to reproduce) b) has auto-merge functionality enabled c) you have admin powers on.
2. While checks are still running, try admin-merging PR:
3. See that merging takes a long time and notice that it gets merged once checks pass.

There are two things that you can notice on the screenshots above: a) due to auto-merge enabled, the UI looks different; for comparison, here's the same PR with auto-merge disabled: b) as said in the title, there's no checkbox for disabling the wait-for-build