The "RC stage" thing is more about the player than the editor - the editor is just updated as needed. So, this might not necesserially be fixed at the same time as V12.7.0-stable is released - but on the flipside, it doesn't have to wait for V12.8.0 or V12.7.1 either, the editor can be updated in its own time. Most likely, I'll look at an update to fix this shortly after NL V12.7.0-stable is released (as in, within the following day or two).