Manually enter date: focus lost after first key press

Issue occurs on SingleDatePicker and DateRangePicker. When manually entering the date, focus is lost after first key press. User then has to re-select the text box to continue manually entering date.

In the gif below, I select the the text box for the date and continuously press the number 2. After the first key stroke, the text box loses focus and does not take my input. I re-select the text box, and it accepts my input as expected.

https://i.makeagif.com/media/10-17-2018/3UvIy4.gif