Expected Date of Solution Plan Field Bug

If the date passes that was entered in the "Expected Date of Solution Plan", the system triggers a pop up notification informing that the date has passed and we can't have a previous date in that field. The next time you hit "save", the system clears the originally selected date. The system should leave the date as is whether or not it has passed. The point of that field is to capture the expected date of the plan to help drive priority. We may or may not make that date. Please fix the field so that the date remains unless the users of the tools update the date.