Propagate LHCbApp.CondDBtag based on .Simulation

This avoids always adding two entries in CondDB.Tags, one for LHCBCOND and one for SIMCOND.

I discovered this bug since at the moment there is no SIMCOND tag for DataType 2018 and I set CondDBtag = "<latest:2018>", which in turn tries to resolve the latest SIMCOND tag with this DataType.

This should be cherry picked in master. I'm not sure it needs to be propagated back to 2017, etc.

Kernel/LHCbAlgs/python/LHCbAlgs/Configuration.py

@@ -127,8 +127,10 @@ class LHCbApp(LHCbConfigurableUser):
         if hasattr( self, "DDDBtag" ):
             CondDB().Tags [ "DDDB" ] = self.getProp("DDDBtag")
         if hasattr( self, "CondDBtag" ):
-            CondDB().Tags [ "LHCBCOND" ] = self.getProp("CondDBtag")
-            CondDB().Tags [ "SIMCOND"  ] = self.getProp("CondDBtag")
+            if not self.getProp("Simulation"):
+                CondDB().Tags [ "LHCBCOND" ] = self.getProp("CondDBtag")
+            else:
+                CondDB().Tags [ "SIMCOND"  ] = self.getProp("CondDBtag")
         if hasattr( self, "DQFLAGStag" ):
             CondDB().Tags [ "DQFLAGS" ] = self.getProp("DQFLAGStag")
         # Set up a time decoder for real data (Simulation uses FakeEventTime)