Run Pipeline button is not showing other than the default branch

Summary

Run Pipeline button is not showing other than the default branch

Steps to reproduce

1. Create a new project as test-pipeline
2. Create a new branch as test-pipeline and add .gitlab-ci.yml for ci/cd to test-pipeline branch
3. Now we want to run test-pipeline branch
4. Now we navigate to CI/CD - Pipelines -- there we don't have the Run Pipeline button to select the test-pipeline branch

Note: https://gitlab.com/nthota/test-pipeline/-/pipelines/new# -- if we use direct URL its working

Example Project

https://gitlab.com/nthota/test-pipeline

What is the current bug behavior?

Run Pipeline button is not showing when we have ci/cd setup for other than default branches

What is the expected correct behavior?

Run Pipeline button should show up if we have ci/cd setup for any branch

Relevant logs and/or screenshots