implemented mu-dependent menu of PhotonID

The implementation of the mu-dependent menu for PhotonID in Athena. It is based on AnalysisBase,22.2.57, and started from release/22.2.57 Athena version.

Calorimeter/CaloCnv/CaloTPCnv/src/CaloCellPacker_400_500.cxx

@@ -219,7 +219,10 @@ void CaloCellPacker_400_500::pack_time
   CaloCompactCell::value_type data = pars.m_logat_field.in (ltime);
 
   // Set the sign bit.
-  if ( time < 0 )
+  // Only set the sign bit if saved value is non-zero.
+  // Otherwise, it'll be read as zero regardless, and if we write
+  // again, the sign bit'll be different.
+  if ( time < 0 && data != 0 )
     data |= pars.m_tsign_mask;
 
   // Fill output.
@@ -294,15 +297,19 @@ void CaloCellPacker_400_500::pack_lar
     // Pack the energy, gain, and quality into the output word.
     double crtae = cbrt(fabs(energy));
     CaloCompactCell::value_type data =
-      pars.m_egain_field.in (gainflag) |
-      pars.m_qualy_field.in (qualflag) |
       (cbrt_flag ? pars.m_crtae_high_field.in (crtae)
        : pars.m_crtae_norm_field.in (crtae));
 
     // Set the sign bit.
-    if (energy < 0)
+    // Only set the sign bit if saved value is non-zero.
+    // Otherwise, it'll be read as zero regardless, and if we write
+    // again, the sign bit'll be different.
+    if (energy < 0 && data != 0)
       data |= pars.m_esign_mask;
 
+    data |= pars.m_egain_field.in (gainflag) |
+            pars.m_qualy_field.in (qualflag);
+
     if (data == pars.m_lar_dummy)
       data = pars.m_lar_dummy_subst;
 
@@ -371,15 +378,18 @@ void CaloCellPacker_400_500::pack_tile
       else
         data = pars.m_crtae_tile_low_field.in (crtae);
 
+      // Add the sign bit.
+      // Only set the sign bit if saved value is non-zero.
+      // Otherwise, it'll be read as zero regardless, and if we write
+      // again, the sign bit'll be different.
+      if (ene[ipmt] < 0 && data != 0)
+        data |= pars.m_esign_tile_mask;
+
       // Add in the gain and quality.
       data |=
         pars.m_egain_tile_field.in (gain[ipmt]) |
         pars.m_qualy_field.in (qualflag);
 
-      // Add the sign bit.
-      if (ene[ipmt] < 0)
-        data |= pars.m_esign_tile_mask;
-
       if (data == pars.m_tile_dummy)
         data = pars.m_tile_dummy_subst;
     }