- for whatever reason, using directly the name of the object in a

QtGui.QStadardItem is creating issues in the tests. Converting it to a
string solve this. After solving the conflict in the pull request this
modification was lost so I am doing it again.
- the FlatCAMObj.FlatCAMGerber.isolate() method is having the line
app.obj.info() which randomly create issues due of using QPixMaps outside
of the GUI thread.

FlatCAMObj.py

@@ -554,7 +554,10 @@ class FlatCAMGerber(FlatCAMObj, Gerber):
                     # Propagate options
                     geo_obj.options["cnctooldia"] = self.options["isotooldia"]
                     geo_obj.solid_geometry = generate_envelope (offset, i == 0)
-                    app_obj.info("Isolation geometry created: %s" % geo_obj.options["name"])
+
+                    # The following line is commented because it creates errors
+                    # regarding QPixmaps used outside GUI thread
+                    # app_obj.info("Isolation geometry created: %s" % geo_obj.options["name"])
 
                 # TODO: Do something if this is None. Offer changing name?
                 self.app.new_object("geometry", iso_name, iso_init)