Issue Summary

When you open a Date picker and there is an ad to the side of it, you can't use hot keys after closing a Date picker on any Trello cards. 

Preconditions: Trello Web, being enrolled for Date picker Jira ad. 

Steps to Reproduce

1. Open any board
2. Open any card
3. Press the D hotkey to open the calendar for the card, OR for a checklist item inside the card
4. Close the calendar either with a click or the Esc hotkey
5. Open the card again
6. Press the D or Esc hotkeys

Expected Results

Hotkeys D, Esc and other hotkeys continue to work inside this or any other card.

Actual Results

Hotkeys D, Esc and other hotkeys stop working inside any card until you reload the browser page in which a Trello is opened.

Workaround

After reloading the page  hotkeys start to work again.