Datepicker set min value with an event behaviour

Here is example of two related datepickers.

First datepicker changes second datepicker min date. After few selections on second datepicker, dialog stays open and strange behaviour is noticed. As I can see there are two dialogs open for second datepicker. I would expect only one dialog. What do you think?

After some research I think that there must be a bug in AUI datepicker or inlineDialog component (cleaninig references to generated inlineCalendar dialogs probaly). I solved problem by recreating whole html tag.