Description of problem:

Unable to expand drift configuration name  when we do group by name


Version-Release number of selected component (if applicable):
RHQ
Version: 4.1.0-SNAPSHOT
Build Number: 967a430

How reproducible:
Every time


Steps to Reproduce:
1.Navigate to Reources --> Platforms ---> select resource link.
2. Go to( click on)  drift tab 
3. Click on configuration tab.
4. Create 3/4 drift configurations 
5. Right click on the column 'Name'.
6. Only the first column is expanded.
7. Try to click on the '+' sign on the configuration names to expand.
8. Columns are not expanded.

Please refer attached screenshot.
  
Actual results:

Unable to expand drift configuration name when tried to do group by name

Expected results:

Columns should get expanded.

Additional info: