The user picker does not show more than 100 users in the group.

To replicate in Jira 10.3.3:

1. Create 100+ users
2. Create a Test Group
3. Add above users 100 to a group to the group
4. Navigate to a User picker, Either by
   1. ⚙ > User Management > Groups > Edit Members of a Group and click the Select User(s) Icon
   2. ⚙ > Issue > Custom fields > Add custom field > User picker > Assign to a screen and access via the screen.
5. On the User Picker pop up, it will only show 100 users despite having more than 100 users in the group.

Customer Impact
This will prevent Jira admins who rely on the user picker to browse and add certain users via the user picker

In v9.4.3 where this appears working:

In v10.3.3 where the problem exist

Suggestion is to restore \ reimplement the old behaviour to allow browsing beyond 100 users.