This bug was fixed in the package horizon - 2:9.0.0-0ubuntu2
--------------- horizon (2:9.0.0-0ubuntu2) xenial; urgency=medium
* d/openstack-dashboard.[preinst|postrm]: Remove any static files from /usr/share/openstack-dashboard/static/* prior to install and after removal (LP: #1568971).
-- Corey Bryant <email address hidden> Mon, 18 Apr 2016 15:05:42 -0400
This bug was fixed in the package horizon - 2:9.0.0-0ubuntu2
---------------
horizon (2:9.0.0-0ubuntu2) xenial; urgency=medium
* d/openstack- dashboard. [preinst| postrm] : Remove any static files from share/openstack -dashboard/ static/ * prior to install and after removal
/usr/
(LP: #1568971).
-- Corey Bryant <email address hidden> Mon, 18 Apr 2016 15:05:42 -0400