Created attachment 1347028 [details]
UI error

Description of problem:
Create VM snapshot with memory, and preview it from UI or REST
Failed in both.

Version-Release number of selected component (if applicable):
4.1.7.6

How reproducible:
All the time

Steps to Reproduce:
1. Create VM
2. Run it
3. Create snapshot with memory
4. Preview snapshot from GUI 
5. Rerun case with preview snapshot from API REST (V4/V3)

Actual results:
Failed to preview

Additional info:

REST API request and response:
2017-11-02 14:51:20,553 - MainThread - art.ll_lib.vms - INFO - Snapshots found: ['Active VM', 'snapshot_1', 'snapshot_2']
2017-11-02 14:51:20,554 - MainThread - snapshots - DEBUG - Action request content is --  url:/ovirt-engine/api/vms/43a9a88f-7a9f-421a-9d9b-5a59a93fa4f5/snapshots/b24b4e3c-4a8a-4c3e-a322-0503d66c89eb/restore body:<action>
    <async>false</async>
    <grace_period>
        <expiry>10</expiry>
    </grace_period>
    <restore_memory>true</restore_memory>
</action>
 
2017-11-02 14:51:20,554 - MainThread - snapshots - INFO - Using Correlation-Id: snapshots_syncAction_c9e94cba-74b2-42e7
2017-11-02 14:51:20,849 - MainThread - core_api - DEBUG - Request POST response time: 0.030
2017-11-02 14:51:20,849 - MainThread - snapshots - DEBUG - Cleaning Correlation-Id: snapshots_syncAction_c9e94cba-74b2-42e7
2017-11-02 14:51:20,849 - MainThread - api_utils - ERROR - Failed to syncAction element NOT as expected:
	Status: 400
	Reason: Bad Request
	Detail: []

2017-11-02 14:51:20,850 - MainThread - snapshots - ERROR - Response code is not valid, expected is: [200, 201], actual is: 400 

Failed in automation test:
https://rhv-jenkins.rhev-ci-vms.eng.rdu2.redhat.com/job/rhv-4.1v3-ge-runner-compute/28/