Unable to add group to space's permissions

Summary

When a group is created with a whitespace at the beginning or the end of its name, it won't be able to be added to a space's permissions.

Environment

Confluence Cloud

Steps to Reproduce

1. Create a group with a whitespace at the end of its name
2. Try to add it to a space's permissions

Expected Results

The group is added to the space's permissions.

Actual Results

The group is not added and an error is shown:

Notes

The group appears at the suggestion box when typing its name, it's possible to select it, but it's not added.

Workaround

Create another group without the whitespace.