"No stages / jobs for this pipeline." on non master branches

Summary

When running any other branch then master, i get this error: "No stages / jobs for this pipeline."

Steps to reproduce

  1. Have this version: 13.2.0-pre
  2. configure CI
  3. run CI for master - OK
  4. create branch from master (no changes, just a different branch name) - NOT OK

Example Project

This happens on our private project here on gitlab.

What is the current bug behavior?

Cannot trigger build for branch.

What is the expected correct behavior?

Can trigger build for branch.

Relevant logs and/or screenshots

This happened overnight... 16 hours ago everything was working.

Zrzut_ekranu_2020-07-22_o_10.25.12

Results of GitLab environment info

13.2.0-pre