Issue Summary

Mirror card doesn't always display due date and card checklists on card front

Steps to Reproduce

1. Create a card with a due date, and checklist items with due dates
2. Create a mirror card from that card
3. Go to the mirror card in another browser tab, or refresh the page. The card front doesn't display the card due date or checklist item count or due dates.

Expected Results

Mirror card should display the same information on the card front as the source card at all times.

Actual Results

The card due date and checklist count/due date doesn't appear on the mirror card front after a page refresh or viewing the mirror card in another browser.

Workaround

If you open the source card, then navigate to the mirror card, (using the same
browser tab), the mirror card displays properly. (However, after a refresh of the page, or if another browser tab is used, the mirror card doesn't display all the information.)

Workaround for would be to open the mirror card to view the due date and checklist items inside the card.