Marks this widget as finished loading records.

def markLoadingFinished(self):
        """
        Marks this widget as finished loading records.
        """
        XLoaderWidget.stop(self, force=True)
        
        hint, tree_hint = self._baseHints
        self.setHint(hint)
        
        # set the tree widget
        if self.showTreePopup():
            tree = self.treePopupWidget()
            tree.setHint(tree_hint)
            tree.unsetCursor()
            tree.setUpdatesEnabled(True)
            tree.blockSignals(False)
        
        self.unsetCursor()
        self.blockSignals(False)
        self.setUpdatesEnabled(True)
        self.loadingFinished.emit()