[DateInput] DateInput re-opens after changing time

Bug report

• Package version(s): 1.33.0
• Browser and OS versions: Chrome 62.0.3202.94, Firefox 57.0, Firefox 56.0 on Windows 10

Steps to reproduce

Reproducible on the documentation page for DateInput http://blueprintjs.com/docs/#datetime/dateinput

See a video of the bug here: https://youtu.be/3Z7MrvRJ0xU

1. Set DateInput precision to Minute, so the TimePicker is shown
2. Open the DateInput
3. Change the time in the TimePicker, you need to actually set a new value, it seems
4. Close the DateInput by clicking outside

Actual behavior

The DateInput will close and then immediately open again

Expected behavior

The DateInput will close