ReplicateAndRegister operation fails if SourceSE is tape and there are disk replicas

[chaen]

Very low priority for me to fix (if ever...) but if you specify the source of the replication in the transformation and that the said source is tape, and you have an available disk replicas, then no available replica is found

This comes from the fact that we check the requested Source SE AFTER we checked the disk replicas

DIRAC/src/DIRAC/DataManagementSystem/Agent/RequestOperations/ReplicateAndRegister.py

Lines 60 to 76 in 7ac6858

	replicas = dataManager.getActiveReplicas(opFile.LFN, getUrl=False, preferDisk=True)
	if not replicas["OK"]:
	log.error("Failed to get active replicas", replicas["Message"])
	return replicas
	reNotExists = re.compile(r".*such file.*")
	replicas = replicas["Value"]
	failed = replicas["Failed"].get(opFile.LFN, "")
	if reNotExists.match(failed.lower()):
	opFile.Status = "Failed"
	opFile.Error = failed
	return S_ERROR(failed)
	replicas = replicas["Successful"].get(opFile.LFN, {})
	# If user set sourceSEs, only consider those replicas
	if opSources:
	replicas = {x: y for (x, y) in replicas.items() if x in opSources}