New download spreadsheet search kit feature broken

@colemanw I think your work on making sane insanity broke the csv download - it's failing on setSeed

I'm able to replicate this error on a very simple search & attempt to download

added comp:searchkit label

https://github.com/civicrm/civicrm-core/pull/21724

closed with commit b53f1cad

closed with commit 2df7d0cd