Description of problem:
Creating compatible (resource: EAP server) group during bundle deployment creates empty mixed group for the first time and creates correct group for the second try.

Version-Release number of selected component (if applicable):
jon 3.2 er7

How reproducible:
always

Steps to Reproduce:
1. create bundle
2. navigate to bundles 
3. click on Deploy button
4. In bundle deployment destination window click on "+" icon to create a group
5. create a group with EAP server resource 
6. Repeat step 3, 4 and 5 


Actual results:
After step5 -> empty mixed group is created -> http://d.pr/v/Yt4Q
After step6 -> correct compatible group is created -> http://d.pr/v/Zuw9

Expected results:
After step5 correct compatible group is created, bundle deployment works fine.


Additional info: