Dear Isomorphic,
In the SmartGWT build we are currently using, 5.0-p20150607, the week number that is shown in the DateChooser is not in general the correct ISO week number. For example, it jumps from week 53 straight to week 2 at the end of 2015. You seem to have fixed a similar problem in the TimeLine earlier, cf. http://forums.smartclient.com/showthread.php?t=29635 .
In the SmartGWT build we are currently using, 5.0-p20150607, the week number that is shown in the DateChooser is not in general the correct ISO week number. For example, it jumps from week 53 straight to week 2 at the end of 2015. You seem to have fixed a similar problem in the TimeLine earlier, cf. http://forums.smartclient.com/showthread.php?t=29635 .