Fixed crash in project countStatus when tree contains orphaned item

nw/gui/dialogs/configeditor.py

@@ -44,7 +44,6 @@ class GuiConfigEditor(QDialog):
         self.setWindowTitle("Preferences")
         self.guiDeco = self.theParent.theTheme.loadDecoration("settings",(64,64))
 
-        self.theProject.countStatus()
         self.tabMain   = GuiConfigEditGeneral(self.theParent)
         self.tabEditor = GuiConfigEditEditor(self.theParent)
 

nw/gui/dialogs/export.py

@@ -50,7 +50,6 @@ class GuiExport(QDialog):
 
         self.guiDeco = self.theParent.theTheme.loadDecoration("export",(64,64))
 
-        self.theProject.countStatus()
         self.tabMain   = GuiExportMain(self.theParent, self.theProject, self.optState)
         self.tabPandoc = GuiExportPandoc(self.theParent, self.theProject, self.optState)
 

nw/project/status.py

@@ -41,6 +41,8 @@ class NWStatus():
         return True
 
     def lookupEntry(self, theLabel):
+        if theLabel is None:
+            return None
         theLabel = theLabel.strip()
         if theLabel in self.theMap.keys():
             return self.theMap[theLabel]