Wip false data loss warning (#92)

* Fix false positive data loss warning.

When having more than one data member to be matched against a macro pulse number (like an IFFF) a race condition could lead to false data loss warning.
The current algorithm is only monitoring data loss of one data member.

* fix code comment

Co-authored-by: Martin Killenberg <martin.killenberg@desy.de>

src/PropertyBase.cc

@@ -47,8 +47,11 @@ namespace ChimeraTK {
                       << " (repeated " << _nDataLossWarnings << " times)." << std::endl;
           }
         }
+        // Tracking that data is modified is only done for the "compareTo" variable.
+        // If we want to detect data loss on all variables in the consistency group, we would have to track this for
+        // each variable separately.
+        _doocsSuccessfullyUpdated = false;
       }
-      _doocsSuccessfullyUpdated = false;
       return false;
     }
     _doocsSuccessfullyUpdated = true;