HPCC-11302 - Fix implicit super file creation transaction retry

Hitting a timeout and retrying caused the automatically creted
superfile to be missing to any transaction steps that relied on
it.

Signed-off-by: Jake Smith <jake.smith@lexisnexis.com>
Merge pull request #5768 from jakesmith/hpcc-11302

HPCC-11302 - Fix implicit super file creation transaction retry

Reviewed-By: Gavin Halliday <gavin.halliday@lexisnexis.com>
Reviewed-By: Richard Chapman <rchapman@hpccsystems.com>