Multiple LDAP accounts locked out after upgrade to 13.2

Summary

Some users no longer able to log in via LDAP after upgrade to 13.2

Steps to reproduce

It seems that anyone with unconfirmed secondary e-mail addresses was no longer able to log in.

Example Project

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What is the current bug behavior?

Attempting to log in yields an "unconfirmed e-mail" error

What is the expected correct behavior?

Login should be seamless

Relevant logs and/or screenshots

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Output of checks

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Results of GitLab environment 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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