resubmission does not work for automatic splitting

[belforte]

see e.g. https://cms-talk.web.cern.ch/t/crab-resubmit-still-does-not-work-properly-for-automatic-splitting/51139 and references in there.

Last time I looked at this I got convinced that resubmissions of the subdags is only possible before they have all complete. But once they do, the main dag itself is closed and restarting it will not trigger any action, there is no Rescue file for it.
Yet only the BASE (was called ROOT before) DAG is restarted

CRABServer/src/python/TaskWorker/Actions/DagmanResubmitter.py

Lines 67 to 75 in 3087e06

	# Find only the originally submitted DAG to hold and release: this
	# will re-trigger the scripts and adjust retries and other
	# resubmission parameters.
	#
	# Processing and tail DAGs will be restarted by these scrips on the
	# schedd after the modifications are made.
	rootConst = f"(CRAB_DAGType =?= \"BASE\" && CRAB_ReqName =?= {classad.quote(workflow)})"
	rootConst += f" || (TaskType =?= \"ROOT\" && CRAB_ReqName =?= {classad.quote(workflow)})"

It seems to me that it was like this since ever. But I never looked at this cose before. So... hard to say.

We can possibly address this in the context of refactoring resubmission #6270