Merge branch 'master' into dev_0.6

nw/core/document.py

@@ -73,6 +73,8 @@ class NWDoc():
         """Open a document from handle, capturing potential file system
         errors and parse meta data.
         """
+        # Always clear first, since the object will often be reused.
+        self.clearDocument()
 
         self.docHandle = tHandle
         if not isOrphan:

nw/core/project.py

@@ -975,7 +975,6 @@ class NWProject():
             oName = ""
             if aDoc.openDocument(oHandle, showStatus=False, isOrphan=True):
                 oName, oPath = aDoc.getMeta()
-                aDoc.clearDocument()
 
             if oName == "":
                 nOrph += 1