resulted in a user acquiring permanent membership in a group.
To remove a user from a group the user was in due to a regular
expression in version 2.16 or earlier, the user must be explicitly
- removed from the group.</para>
+ removed from the group. This can easily be done by pressing
+ buttons named 'Remove Memberships' or 'Remove Memberships
+ included in regular expression' under the table.</para>
</note>
<warning>
<para>If specifying a domain in the regexp, make sure you end