glab issue update --label not adding label

Checklist

• I'm using the latest version of the extension (Run glab --version)
  • Extension version: glab 1.58.0 (676a7ced)
• Operating system and version: macOS-15.5
• Gitlab.com or self-managed instance? self-managed instance
• GitLab version (if self-managed) gitlab-ee 18.0.1-ee.0 amd64, {"version":"18.0.1-ee","revision":"3426be1b938","kas":{"enabled":true,"externalUrl":"wss://gitlab.XXXX/-/kubernetes-agent/","externalK8sProxyUrl":"https://gitlab.XXXX/-/kubernetes-agent/k8s-proxy/","version":"18.0.1"},"enterprise":true} (Use the version endpoint, like this: gitlab.my-company.com/api/v4/version)
• I have performed glab auth status to check for authentication issues
• Run the command in debug mode (like DEBUG=true glab mr list) and attach any useful output

Summary

glab did not update labels.

Environment

• OS: Darwin 24.5.0 arm64
• SHELL: /bin/zsh
• TERM: xterm-256color
• GLAB: glab 1.58.0 (676a7ced)

Other:

Steps to reproduce

% glab issue view 2551
open • opened by XXXX about 27 days ago
Test #2551

0 upvotes • 0 downvotes • 0 comments
Labels: 2025::May__, category::Promo, workflow::Needs Review

View this issue on GitLab: https://gitlab.XXXX/planning/marketing/marketing/-/issues/2551

% glab issue update 2551 --label 2025::May --unlabel 2025::May__
- Updating issue #2551
✓ added labels 2025::May
✓ removed labels 2025::May__
#2551 Test (about 27 days ago)
 https://gitlab.XXXX/planning/marketing/marketing/-/issues/2551

% glab issue view 2551
open • opened by XXXX about 27 days ago
Test #2551

0 upvotes • 0 downvotes • 0 comments
Labels: 2025::May__, category::Promo, workflow::Needs Review

View this issue on GitLab: https://gitlab.XXXX/planning/marketing/marketing/-/issues/2551

% glab issue update 2551 --label 2025::May
- Updating issue #2551
✓ added labels 2025::May
#2551 Test (about 27 days ago)
 https://gitlab.XXXX/planning/marketing/marketing/-/issues/2551

% glab issue view 2551
open • opened by XXXX about 27 days ago
Test #2551

0 upvotes • 0 downvotes • 0 comments
Labels: 2025::May__, category::Promo, workflow::Needs Review

View this issue on GitLab: https://gitlab.XXXX/planning/marketing/marketing/-/issues/2551

DEBUG=true glab issue update 2551 --label 2025::May --unlabel 2025::May__
[git remote -v]
[git config --get-regexp ^remote\..*\.glab-resolved$]
[git remote -v]
[git config --get-regexp ^remote\..*\.glab-resolved$]
[git remote -v]
[git config --get-regexp ^remote\..*\.glab-resolved$]
[git remote -v]
[git config --get-regexp ^remote\..*\.glab-resolved$]
- Updating issue #2551
✓ added labels 2025::May
✓ removed labels 2025::May__
#2551 Test (about 27 days ago)
 https://gitlab.XXXX/planning/marketing/marketing/-/issues/2551

% glab issue view 2551
open • opened by XXXX about 27 days ago
Test #2551

0 upvotes • 0 downvotes • 0 comments
Labels: 2025::May__, category::Promo, workflow::Needs Review

View this issue on GitLab: https://gitlab.XXXX/planning/marketing/marketing/-/issues/2551

What is the current bug behavior?

labels are not added/removed

What is the expected correct behavior?

labels should be added/removed

Relevant logs and/or screenshots

see above

Possible fixes

I have no idea where the bug in the code is.