If host interface connection type is changed manually after autoregistration, then connection type will not be reverted after agent restart.

Steps to reproduce:

1. Create an autoregistration action to add a host
2. Set parameters in the agent configuration file: Hostname=test, HostInterfaceItem=system.hostname 
3. Run the zabbix server and zabbix agent
4. Make sure that new host 'test' is added and interface connection type is 'DNS'
5. Manually change connection type to 'IP'
6. Restart the agent
7. Observe that connection type is still 'IP'

Expected:
According to straightforward logic connection type should be changed back. But it can be considered as expected due to manual change priority.