Merge pull request #968 from ey6es/blendface

Another slight face fix: clear the face when set, before loading the new...

interface/src/avatar/BlendFace.cpp

@@ -108,6 +108,9 @@ void BlendFace::setModelURL(const QUrl& url) {
         _modelReply = 0;
     }
     
+    // clear the current geometry, if any
+    setGeometry(FBXGeometry());
+    
     // remember the URL
     _modelURL = url;