Able to set Date constraint on previous queries/ptset as concept

Log into https://www.i2b2.org/webclient/
drag and drop a previous query onto the 1st group panel
Right click on the previous query concept and select 'set date constraint' from the context menu
Set a date constraint , example >12/1/2014 on the date picker pop up.
click OK.
Issue1:
Expected Result: Msg should be displayed to the user that date condtraints cannot be set on previous query.
Actual result: The date picker pop up OK button seem to be non functional and no msg dispalyed to user
Issue2:Click cancel on the date picker pop up after setting date constraint
Now drag and drop a second concept to the same group panel as the previous query,
Expected Result: no date constraint should be set on the previous query
Actual Result: date constraint appears on the previous query concept after adding a second concept to the same group panel
Note: Same issue exists for Patient set as concept