[FIX] purchase_request: handle move_dest_ids as False in Odoo 18#3019

fsmw wants to merge 2 commits intoOCA:18.0OCA/purchase-workflow:18.0from

fsmw:18.0-fix-purchase-request-move-dest-idsfsmw/purchase-workflow:18.0-fix-purchase-request-move-dest-idsCopy head branch name to clipboard