server adapter wizard: selecting different connection in credentials dialog has no effect

1. ASSERT: make sure you have at least 2 connections to OpenShift listed in OpenShift Explorer
   
2. EXEC: launch server adapter wizard
3. ASSERT: you get the credentials dialog with some connection pre-selected (it's the one you used most recently)
   
4. EXEC: switch the preselected connection, enter the password and hit "Finish"

Result:
You get the credentials dialog presented once more and it has again the last connection preselected

Expected result:
You cannot switch the connection, the credentials dialog should simply prompt me to input the password for the preselected connection. If dont want to use this connection, I simply cancel the password prompt and switch the connection combo in the wizard.