Fix loading of meta data

src/FirmwarePlugin/APM/APMParameterMetaData.cc

@@ -97,6 +97,8 @@ void APMParameterMetaData::_loadParameterFactMetaData(void)
 /// Override from FactLoad which connects the meta data to the fact
 void APMParameterMetaData::addMetaDataToFact(Fact* fact)
 {
+    _loadParameterFactMetaData();
+
     // FIXME: Will need to switch here based on _vehicle->firmwareType() to pull right set of meta data
 
     FactMetaData* metaData = new FactMetaData(fact->type(), fact);

src/FirmwarePlugin/PX4/PX4ParameterMetaData.cc

@@ -347,6 +347,7 @@ void PX4ParameterMetaData::_loadParameterFactMetaData(void)
 /// Override from FactLoad which connects the meta data to the fact
 void PX4ParameterMetaData::addMetaDataToFact(Fact* fact)
 {
+    _loadParameterFactMetaData();
     if (_mapParameterName2FactMetaData.contains(fact->name())) {
         fact->setMetaData(_mapParameterName2FactMetaData[fact->name()]);
     } else {