Mobile Error 500 if a reshared (original) post will be deleted.

I did not get around this https://github.com/diaspora/diaspora/pull/4063

Now, same problem appears...

> **When you are logged in a pod...**

> With mobile shows "Error 500" https://diasp.org/posts/1388326.mobile without mobile works fine https://diasp.org/posts/1388326