Group Description: Spaces after description are trimmed

Pre-condition:
You should have administration right on the forum.
You are sign in forum.

Steps to reproduce:

1. Go to "User Groups" in Administration menu
2. Click "Create new"
3. Fill out Group Name field with valid data
4. Fill out Group Description field with valid text with few spaces after this text
5. Click "Save" button
6. Click on pen icon in the right edge of the newly created Group row
7. Overview Description field

Actual result: Description field should contain text entered in step #4. All spaces after the text should be trimmed
Expected result: Description field contains text entered in step #4. One space after the text is not trimmed

Reproduced for Group Description field in Edit Group pop up as well