DIRACGrid/DIRAC — pull request #787 by KrzysztofCiba (2012-06-15 14:19:05+00:00)
Title: FIX: RequestDBMySQL::getRequestForJobs, return S_ERROR if no jobIDs are ...

Should be merged in rel-v6r4 too.

Fixing this:
```
2012-06-15 14:07:50 UTC RequestManagement/RequestManager/MySQL WARN: _query: SELECT JobID,RequestName from Requests where JobID IN ();
2012-06-15 14:07:50 UTC RequestManagement/RequestManager EXCEPT: RequestManagerHandler.getRequestForJobs: Exception which getting request names.
2012-06-15 14:07:50 UTC RequestManagement/RequestManager EXCEPT: == EXCEPTION ==
2012-06-15 14:07:50 UTC RequestManagement/RequestManager EXCEPT: Unknown exception type:Value
2012-06-15 14:07:50 UTC RequestManagement/RequestManager EXCEPT: ===============
```

Will return S_ERROR if no jobIDs are present in args.