[v8r2] Revert "fix" in workflow module
The fix in FailoverRequest forcing resetting files to Unused was causing 2 problems:
- It is preventing MaxReset to trigger
- If the job fails due to "Input Data already processed" it may reset unduly the input file Unused and enter a loop of failing jobs
Few minor fixes in scripts One new script to define the run destination for datasets that don't have any