Regression - lotsa noise on Searchkit screen if Form code editor enabled
On upgrading a dev site with Form Code Editor enabled from 5.54 to 5.56 the search kit screen went 'haywire'. Doing the same on dmaster gave a more modest error display (but the difference is the other site has some aggressive xdebug error display stuff going on)
@totten @colemanw unless we are actively deprecating that extension we need to fix (I can disable on the site in question)