Description of problem:
'Name' field in the 'New Data Center' dialog loses focus while typing in it in some scenarios, e.g. while removal of another data-center is being performed in the background.

Version-Release number of selected component (if applicable):
latest upstraem ["master"]

How reproducible:
100% (at least in the detailed scenarios)

Steps to Reproduce:
1. Go to the Data Centers main tab
2. Select a Data Center to be removed
3. click "Remove" and confirm by clicking "OK" in the confirmation dialog
4. [quickly, before the Data Center disappears from the grid] click "New" to open the 'New Data Center" dialog
5. in the dialog: start typing text in the 'Name' field. keep typing, and while typing - observe the removed Data Center disappearing from grid in the background

Actual results:
'Name' field loses it focus once the removed Data Center disappears from the grid in the background; so even though I keep typing text, it is not being filled in the text-box

Expected results:
'Name' field should keep its focus (i.e. text that I am typing should go into the text box)

Additional info:
- see attached video that demonstrates the scenario.
- I think that this used to happen a lot more before the upgrade to gwt 2.5, but I could be wrong.
- same scenario for the Clusters main tab didn't reproduce for me (i.e. Clusters  grid / 'New Cluster' dialog behavior is OK), not sure what is the root cause of the difference (text-box type? sub-tabs?).