openvswitch-monitor can't be installed on edge
$ apk add -s openvswitch-monitor
ERROR: unsatisfiable constraints:
py-twisted-web2 (missing):
required by: openvswitch-monitor-2.8.0-r0[py-twisted-web2]
Besides openvswitch currently resides in main/ but openvswitch-monitor depends on py-qt which resides in testing/.
(from redmine: issue id 7830, created on 2017-09-14)