Issue Summary

We have a user with the following user group names, they are unable to rename a group to the same number of characters as another group, as it says the group exists:
선행개발셀
경솔개발그룹
경솔기반그룹_선행개발셀
경솔기반그룹_Devops셀

Steps to Reproduce

1. Replicate same user groups as above
2. Try to rename "선행개발셀" > "경솔기반그룹_선행개발셀"
3. As the URL translates each of the Korean characters into "-" characters in the URL, the API is failing to update the name as there is already a group name with the same amount of characters
   ie https://bitbucket.org/workspacename/settings/groups/----- is the URL for the first group with 5 characters, if you try to name a group with non-alphanumeric characters that is 5 characters long, it will give you an error as it is translated as the same URL

Expected Results

The group is renamed, as it is a unique name different to all the other groups names. The non-alphanumeric characters should be encoded accordingly using character codes (ie %EC%82%EB%AC%BC) and not simply as "dashes".

Actual Results

"Group already exists" error displays

Workaround

User will have to include a symbol at the beginning/end of the group name or include an English word in the group name so that the URL is different