ACDC of recovery workflows
https://cmsweb.cern.ch/reqmgr2/fetch?rid=vlimant_ACDC0_recovery-1-fabozzi_Run2016H-v1-BTagCSV-07Aug17_8029__171013_133417_8968

went in failed. it's an ACDC of a recovery.
how hard will it be to make it work ?
FYI @prozober

diff --git a/src/python/WMCore/ReqMgr/Utils/Validation.py b/src/python/WMCore/ReqMgr/Utils/Validation.py
index f095683dc..c6f408261 100644
--- a/src/python/WMCore/ReqMgr/Utils/Validation.py
+++ b/src/python/WMCore/ReqMgr/Utils/Validation.py
@@ -116,6 +116,9 @@ def validate_resubmission_create_args(request_args, config, reqmgr_db_service, *
     response = reqmgr_db_service.getRequestByNames(request_args["OriginalRequestName"])
     originalArgs = response.values()[0]
 
+    ### not a nice fix for #8245, but we cannot inherit the CollectionName attr
+    originalArgs.pop("CollectionName", None)
+
     chainArgs = None
     if originalArgs["RequestType"] == 'Resubmission':
         # ACDC of ACDC, we can't validate this case
['src/python/WMCore/ReqMgr/Utils/Validation.py']