Added file directory change to on_value_change callback for the FilePath Property

Author: manuelkoester

NodeGraphQt/custom_widgets/properties_bin/custom_widget_file_paths.py

@@ -42,6 +42,7 @@ def _on_select_file(self):
     def _on_value_change(self, value=None):
         if value is None:
             value = self._ledit.text()
+        self.set_file_directory(value)
         self.value_changed.emit(self.toolTip(), value)
 
     def set_file_ext(self, ext=None):