Hybrid mode, avoid adding the Tool twice

Trigger/TrigMonitoring/TrigHLTMonitoring/share/TrigHLTMonCommon_jobOptions.py

@@ -120,14 +120,15 @@ if data_type == 'pool':
     from TriggerJobOpts.TriggerConfigGetter import TriggerConfigGetter
     cfg =  TriggerConfigGetter()
     
-    from AthenaCommon.Configurable import Configurable
-    from AthenaConfiguration.ComponentAccumulator import appendCAtoAthena
-    from AthenaConfiguration.AllConfigFlags import ConfigFlags
-    Configurable.configurableRun3Behavior += 1
-    from TrigDecisionTool.TrigDecisionToolConfig import getTrigDecisionTool
-    acc = getTrigDecisionTool(ConfigFlags)
-    appendCAtoAthena( acc )
-    Configurable.configurableRun3Behavior -= 1
+    if not hasattr(ToolSvc, 'TrigDecisionTool'):
+        from AthenaCommon.Configurable import Configurable
+        from AthenaConfiguration.ComponentAccumulator import appendCAtoAthena
+        from AthenaConfiguration.AllConfigFlags import ConfigFlags
+        Configurable.configurableRun3Behavior += 1
+        from TrigDecisionTool.TrigDecisionToolConfig import getTrigDecisionTool
+        acc = getTrigDecisionTool(ConfigFlags)
+        appendCAtoAthena( acc )
+        Configurable.configurableRun3Behavior -= 1
     
     # enable slices for monitoring 
     # otherwise enable slices via monFlags 

Trigger/TriggerCommon/TriggerJobOpts/python/T0TriggerGetter.py

@@ -29,14 +29,16 @@ class T0TriggerGetter(Configured):
         cfg =  TriggerConfigGetter()  # noqa: F841
 
         # preconfigure TrigDecisionTool
-        from AthenaCommon.Configurable import Configurable
-        from AthenaConfiguration.ComponentAccumulator import appendCAtoAthena
-        from AthenaConfiguration.AllConfigFlags import ConfigFlags
-        Configurable.configurableRun3Behavior += 1
-        from TrigDecisionTool.TrigDecisionToolConfig import getTrigDecisionTool
-        acc = getTrigDecisionTool(ConfigFlags)
-        appendCAtoAthena( acc )
-        Configurable.configurableRun3Behavior -= 1
+        from AthenaCommon.AppMgr import ToolSvc
+        if not hasattr(ToolSvc, 'TrigDecisionTool'):
+            from AthenaCommon.Configurable import Configurable
+            from AthenaConfiguration.ComponentAccumulator import appendCAtoAthena
+            from AthenaConfiguration.AllConfigFlags import ConfigFlags
+            Configurable.configurableRun3Behavior += 1
+            from TrigDecisionTool.TrigDecisionToolConfig import getTrigDecisionTool
+            acc = getTrigDecisionTool(ConfigFlags)
+            appendCAtoAthena( acc )
+            Configurable.configurableRun3Behavior -= 1
 
 
         if withLVL1():