Reintroducing Staging to Checking transition

Author: michmx

src/DIRAC/WorkloadManagementSystem/Client/JobStatus.py

@@ -89,8 +89,8 @@ def __init__(self, state):
             RESCHEDULED: State(6, [WAITING, RECEIVED, DELETED, FAILED], defState=RESCHEDULED),
             MATCHED: State(5, [RUNNING, FAILED, RESCHEDULED, KILLED], defState=MATCHED),
             WAITING: State(4, [MATCHED, RESCHEDULED, DELETED], defState=WAITING),
-            STAGING: State(3, [WAITING, FAILED, KILLED], defState=STAGING),
-            SCOUTING: State(2, [CHECKING, FAILED, STALLED, KILLED], defState=SCOUTING),
+            STAGING: State(3, [CHECKING, WAITING, FAILED, KILLED], defState=STAGING),
+            SCOUTING: State(3, [CHECKING, FAILED, STALLED, KILLED], defState=SCOUTING),
             CHECKING: State(2, [SCOUTING, STAGING, WAITING, RESCHEDULED, FAILED, DELETED], defState=CHECKING),
             RECEIVED: State(1, [SCOUTING, CHECKING, WAITING, FAILED, DELETED], defState=RECEIVED),
             SUBMITTING: State(0, [RECEIVED, CHECKING, DELETED], defState=SUBMITTING),  # initial state