Use canonical process variable name.

This is important so that notifications for the process variable are
delivered to the right record. The canonical name can differ from the
name specified in the record because it is implicitly converted to a
RegisterPath object and that object might add or remove separators.

chimeraTKApp/src/ChimeraTK/EPICS/RecordDeviceSupport.h

@@ -109,10 +109,13 @@ class RecordDeviceSupportTrait {
     device = DeviceRegistry::getDevice(deviceNameAndProcessVariableName.first);
     {
       boost::unique_lock<boost::recursive_mutex> lock(device->mutex);
-      processVariableSupport = device->createProcessVariableSupport(
-          deviceNameAndProcessVariableName.second);
       processVariable = device->pvManager->getProcessVariable(
           deviceNameAndProcessVariableName.second);
+      // We use processVariable->getName() so that we use the canonicalized name
+      // when create the process-variable support. Otherwise, notifications for
+      // the process variable might not be dispatched to the correct support.
+      processVariableSupport = device->createProcessVariableSupport(
+          processVariable->getName());
     }
   }