Yes, i am able to reproduce the problem in Linux but not in windows. I am attaching the fix for this issue. After applying this fix, the behaviour in windows and linux are same.
Kindly let me know if i miss anything here.
Still not quite right I'm afraid. If I open a user account with no pre-existing expiry, then the dialogue will try to execute:
ALTER ROLE rolename
VALID UNTIL 'infinity';
As I haven't changed anything on the dialogue, it shouldn't try to make any changes (or, enable the OK button). Also, the dialogue itself shows the current date - it should be blank. If I choose a date - then it still tries to set the expiry to infinity!
