Incorrect displaying of voting results in Poll

Preconditions:
1.Navigate to the Admin panel
2.Navigate to the Groups page and create "Test Group"
3.Add User1, User2, User3
4.Create a "Branch" and grant Allow VIEW_TOPICS and CREATE_POSTS for the "Test Group"

How to reproduce:
1. Log into the Forum using User1 credentials
2. Select the "Branch" and create a "Topic"
3. Fill out topic title and message content
4. In Poll field fill out Poll name and create three Poll options
5. Choose box "Multiple answers are allowed"
6. Click on "Save"
7. Go to the first post in the "Topic"
8. Vote in the Poll choosing all three poll options
9. Log out from the Forum
10. Log into the Forum using User2 credentials
11. Vote in the Poll choosing first two poll options
12. Log out from the Forum
13. Log into the Forum using User3 credentials
14. Vote in the Poll choosing two poll options
15. Verify displaying results

Actual result: The percentage of the third option in Poll is not shown(see an attach)
Expected result: the percentage of voting is shown for all three options