When adding and removing members from a course group there is a table containing the lists of users.

One place this is used is:

1. Create a course
2. Add a number of users
3. Go to Course administration > Users > Groups
4. Add a group, adding a description and a picture
5. Go to edit the members of the group

This issue is concerning the table that can be found around the members. I have created another issue for the table that contains the group image and description (https://tracker.moodle.org/browse/MDL-49765).

There are a number of places that have a similar interface, but I am not yet sure if they are all related.