"Remember me" checkbox at login does not behave as expected

Summary

When I log in to https://gitlab.com and I check the "Remember Me" checkbox, then I should stay logged in until I click "Log out" or I clear my cookies.

It should not matter how much time has elapsed since I logged in; even if I come back in a year's time, I should still be logged in.

If there is a time limit on how long I will be remembered, then the checkbox label should state what it is. However, it is much better UX for the checkbox to remember me until I explicitly log out, especially since gitlab.com now has a check before it will show the login box, with the phrase "you should be redirected in 5 seconds". I wasn't; after over a minute I eventually had to clear my cookies for gitlab.com and try again. And after that, I was not redirected to the page that I was on when I clicked "Log in", but instead on my default home page.

Steps to reproduce

1. Log out of gitlab.com.
2. Log in to gitlab.com, being sure to check the "remember me" checkbox.
3. Close the tab and go away for a period of time (unfortunately, I don't know exactly how long this needs to be).
4. Open a browser tab and enter gitlab.com in the address bar.

Example Project

n/a

What is the current bug behavior?

I am logged out, even though I did nothing to cause this.

What is the expected correct behavior?

I am still logged in, because I checked "remember me" and did not log out or clear my cookies.

Relevant logs and/or screenshots

Output of checks

This bug happens on GitLab.com

Results of GitLab environment info

n/a

Results of GitLab application Check

n/a

Possible fixes

Remove the timeout, or increase it to something much longer like 10 years.