"getDate" returns "Invalid Date" if this.dates is empty

[brumm]

This can happen if you're listening to changeDate and calling getDate and the user clicked on an already-selected date and toggled it off (Hopefully fixed soon).
Also happens if you plain call a = $("#sandbox-container input").datepicker("getDate") on the online-demo with no date selected.

[duncancumming]

+1
Getting this exact same issue. Problem seems to be _toggle_multidate removes the selected date from the this.dates array, leaving an empty array.
When it then triggers the changedate event, this.dates.get(-1) will return undefined.

[metz0r]

+1

[sandebert]

+1

[acrobat]

Can you guys confirm #1213 fixes this issue?