wxGUI: set changed flag when saving workspace

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@43000 15284696-431f-4ddb-bdfa-cd5b030d7da7

gui/wxpython/wxgui.py

@@ -840,6 +840,7 @@ class GMFrame(wx.Frame):
                 Debug.msg(4, "GMFrame.OnWorkspaceSave(): filename=%s" % self.workspaceFile)
                 self.SaveToWorkspaceFile(self.workspaceFile)
                 self.SetTitle(self.baseTitle + " - " + os.path.basename(self.workspaceFile))
+                self.workspaceChanged = False
         else:
             self.OnWorkspaceSaveAs()