使用 Ubuntu 17.04，Dash 不断关闭我使用的范围 - 这非常烦人且适得其反。
我怎样才能让它停止关闭我已启用的范围？
重现此问题：
1) Open Dash
2) Type 'Vachon' (name of a Virtualbox VM)
3) Enable Virtualbox Source to get the vm to show up.
4) Close and re-open the Dash
5) Type 'Vachon'
6) Observe that the Virtualbox Source was unhelpfully turned off, and I don't get the expected search result. I have to manually turn it on again just to get the show result to show up.