The current workaround is to make sure that both the day and month include leading zeros in the ShortDatePattern: this.DatePicker.Culture.DateTimeFormat.ShortDatePattern = "yyyy.MM.dd";
For example after entering "7 July 2014" hitting the enter keyboard key causes ArgumentOutOfRangeException
Available with the 2016 R2 Release.
Available in LIB version 2016.3.1017, it will be also available in the 2016 R3 SP1 release.