Bug: When creating a draft from an activated workflow version, the draft
row was inserted into the database without steps and trigger, then
updated with them in a separate operation. The SSE create-one event
fired on the INSERT, causing the frontend to refetch the draft before
the UPDATE — resulting in steps: null and trigger: null, which crashed
the step editor.
Fix: Reorder the operations so steps are duplicated first, then either
insert a new draft or update an existing one with steps and trigger
already populated. The row never exists in the database without complete
data.
