"Create lists from labels" keeps removing certain lists.

Summary

Twice this morning 5 Lists created from labels have disappeared from out boards, forcing all the tickets into our Open bucket. I've had to go back to Add Lists and reselect them.

It was the same set of Lists so could be related to when they were created?

Steps to reproduce

I haven't figured out the pattern that causes this issue. It's happened twice today and doesn't appear to be anything that has happened our end to trigger this.

Example Project

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What is the current bug behavior?

Some lists created from labels are deslecting themselves

What is the expected correct behavior?

The lists I've selected should show on our board.

Relevant logs and/or screenshots

Output of checks

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Results of GitLab environment info

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sudo gitlab-rake gitlab:env:info)
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sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production)

Results of GitLab application Check

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sudo gitlab-rake gitlab:check SANITIZE=true)
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sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production SANITIZE=true)
(we will only investigate if the tests are passing)

Possible fixes

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