Steps to reproduce:
- Create a few groups with descriptions
- Go to the groups overview page group/overview.php
- Move your mouse over the page
The group description is displayed below the group name, overlapping the group listed below.
Having the group description displayed when mousing over the group name is unexpected behaviour. If it is necessary to display group descriptions on the group overview page (maybe it isn't?) then I would expect the table to include a column for group descriptions.
This bug may be observed on http://school.demo.moodle.net/group/overview.php?id=62 if you log in as a teacher.
The bug is the same in Clean and in Boost.