The recording radio buttons at /release/add#recordings are reordered when clicking "Add a new recording". Here are repro steps (based on yvanzo's comment at https://github.com/metabrainz/musicbrainz-server/pull/3006#issuecomment-1682324148):

1. Go to https://musicbrainz.org/release/add?release-group=0da580f2-6768-498f-af9d-2becaddf15e0.
2. Click the "Tracklist" tab and add a single track with the title "Fight Fire With Fire" and length 4:45.
3. Click the "Recordings" tab.
4. Click the "Edit" button next to the track; a bubble should appear listing a bunch of recordings.
5. Click the radio button next to one of the recordings to select it.
6. Click the "Add a new recording" radio button at the end of the list.

Whenever "Add a new recording" is selected, the previously-selected recording seems to be moved to the top of the list. I haven't looked at the code to figure out if this is deliberate (maybe to make it easier to undo a change?), but it can be pretty disorienting, particularly when using the arrow keys to select radio buttons (see MBS-13207). The bubble also currently shifts vertically when selecting recordings (MBS-13241), which can make this more confusing.