POST /revisions/:id/data/query (Command: download_execution_definition)
Request Body
Runs on the execution’s own revision.
Response
For an execution without a snapshot, this answers from the live definition exactly as
Download Definition does, including a 403 if that
definition is gone — so a client needs no separate branch for older executions.
Unlike Download Definition, which reads a definition directly by id on a revision you can read, this reads what
a specific execution actually ran, wherever it came from. See
The execution snapshot.

