Protected tag access control specs are failing

In https://gitlab.com/gitlab-org/gitlab-ee/-/jobs/146589547 the following tests failed:

Failures:

  1) Protected Tags access control with ref permissions for users enabled prepends selected users that can create
     Failure/Error: e = error

     Selenium::WebDriver::Error::StaleElementReferenceError:
       stale element reference: element is not attached to the page document
         (Session info: headless chrome=69.0.3497.81)
         (Driver info: chromedriver=2.41.578700 (2f1ed5f9343c13f73144538f15c00b370eda6706),platform=Linux 4.14.48-coreos-r2 x86_64)
     Shared Example Group: "protected tags > access control > EE" called from ./spec/features/protected_tags_spec.rb:119
     # ./ee/spec/support/protected_tags/access_control_spec.rb:95:in `block (4 levels) in <top (required)>'
     # ./ee/spec/support/protected_tags/access_control_spec.rb:94:in `each'
     # ./ee/spec/support/protected_tags/access_control_spec.rb:94:in `each_with_index'
     # ./ee/spec/support/protected_tags/access_control_spec.rb:94:in `block (3 levels) in <top (required)>'
     # ./ee/spec/support/protected_tags/access_control_spec.rb:88:in `block (2 levels) in <top (required)>'

Finished in 18 minutes 19 seconds (files took 14.35 seconds to load)
705 examples, 1 failure

Failed examples:

rspec './spec/features/protected_tags_spec.rb[1:3:1:4]' # Protected Tags access control with ref permissions for users enabled prepends selected users that can create

These failures should be investigated, and they should either be solved or the tests should be quarantined.