Steps to reproduce:

1. Go to Data collection -> Discovery
2. Open a Discovery rule
3. Select "Edit" on a Discovery Check
4. Select "Update"
5. Navigate the website with keyboard (pressing Tab)

Result:
After an element in a list is updated the list gets re-rendered therefore loosing the focus on the "Edit" button as it is inside the list.
Causing the focus element to be lost and it defaults to setting focus on <body>

Expected:
Focus should remain inside the popup on the "Edit" that initially opened the popup