Description of problem:
When host is edited from the UI when saved protocol setting is overwriten to default value.
Steps to Reproduce:
1. Install new host with jsonrpc
2. Edit host and save
Protocol setting for host is set to xmlrpc
No matter what was the setting it should keep original value.
oVirt Engine Version: 3.5.0-0.0.master.20140821064931.gitb794d66.el6
oVirt 3.5 has been released and should include the fix for this issue.