Comment 15 for bug 1602719

Verified on 9.2 snapshot #801.

Steps to verify:
1. Deploy ubuntu cluster with any plugin, for example ldap plugin
2. ssh to slave node and check priority of plugin's repo in 'apt-cache policy' output

Actual results:
Priority is 1100:
1100 http://10.109.25.2:8080/plugins/ldap-3.0/repositories/ubuntu/ Packages
     release v=3.0,l=ldap,c=
     origin 10.109.25.2