RobotDecli missing in test case execution

[ffazendeiro]

HI,
For version Cerberus4.11.2-1583 the RobotDecli is missing when executing manual tests.
If we run a tests case for more than one Robot they are all grouped and the RobotDecli is removed.
Steps to reproduce:

1. Stop the queue
2. Execute a test case (with option manual selected) for several robot (in this case 3):
   
   Note: On the table testcaseexecutionqueue the robotDecli is correctly populated and all seems ok:
   
3. Start the queue
4. The 3 execution are replaced by only on with no robot declination populated and the number of retries is increased:
   
   Note: On the table testcaseexecution the robotDecli is no longer present (althought the robot are correctly defined)
   

Seems that the manual execution have the same behavior as a service test (that does not required any robot).
O the previous version, manual tests have the same behavior as automated tests.