Wrong branch name for issues with cyrillic title

Summary

"New branch" button on Issue page gets incorrect name for branch

Steps to reproduce

1. create issue with cyrillic title
2. hover New branch button
3. it has tooltip with new branch name like 1- or 2-

What is the current bug behavior?

Algoritm trims cyrillic symbols from issue title

What is the expected correct behavior?

I expected transliteration variant of issue title for new branch name.

For example:

Issue gitlab-foss#1 (closed) with tittle Правки available branch name is 1-pravki

Relevant logs and/or screenshots

Output of checks

This bug happens on GitLab.com

@toptalo Thanks for the report. I think I as able to reproduce it on GitLab.com in the following issue in an example project:

• https://gitlab.com/issue-reproduce/new-branch-name-cyrillic/issues/2

Please can you verify that the same problematic behaviour is being exhibited here?

added ~874211 ~12980 ~14281 labels

Hello! Yes, it the same.

@toptalo Thanks for clarifying!

added reproduced on GitLab.com in GitLab FOSS label

This doesn't fix the bug, but we have been exploring the ability to adjust the name of the new branch before creation in the following issue:

• https://gitlab.com/gitlab-org/gitlab-ce/issues/21143

moved from gitlab-foss#30767 (moved)