Issue Summary

Trying to search for an Epic issue via the "+EPIC" -> "View all" button in the backlog of a Scrum CMP results in the search bar not accepting any text input, once the search bar has been clicked on.

Steps to Reproduce

1. Navigate to the backlog of a Scrum CMP
2. In the list, click on the "+ EPIC" button (visible once you hover your mouse over the respective row unless the given issue already has a parent and the "View settings" of the given board, have EPIC toggle switched on under "Card Details") in order to add a parent
3. In the multi-select dropdown menu, click on "View all" (the "View all" option will only be displayed if there are 5+ Epic issues that could be linked)
4. Either type the name of the EPIC you want to set as the parent OR click on the search bar before typing

Expected Results

You should be able to type in the search bar in order to change/lookup an EPIC issue.

Actual Results

You're not able to type and only the EPIC issues shown in the dropdown can be chosen.

Workaround

Cancel the operation (close the window) and start over OR while in the selection window, click "Tab" on your keyboard, which should allow input again.

Additional information:

The Epics in the dropdown are not sorted by the Epic key.