ActionView::Template::Error: undefined method `is_admin?' for nil:NilClass
https://sentry.gitlap.com/gitlab/gitlabcom/issues/12352/
NoMethodError: undefined method `is_admin?' for nil:NilClass
app/helpers/visibility_level_helper.rb:88:in `restricted_visibility_levels'
return [] if current_user.is_admin? && !show_all
app/views/shared/_visibility_radios.html.haml:4:in `block in _app_views_shared__visibility_radios_html_haml__423260729299464244_70306281854540'
- restricted = restricted_visibility_levels.include?(level)
app/views/shared/_visibility_radios.html.haml:1:in `each'
- Gitlab::VisibilityLevel.values.each do |level|
app/views/shared/_visibility_radios.html.haml:1:in `_app_views_shared__visibility_radios_html_haml__423260729299464244_70306281854540'
- Gitlab::VisibilityLevel.values.each do |level|
app/views/shared/_visibility_level.html.haml:7:in `_app_views_shared__visibility_level_html_haml___1262422125500855120_70306483639740'
= render('shared/visibility_radios', model_method: :visibility_level, form: f, selected_level: visibility_level, form_model: form_model)
...
(172 additional frame(s) were not displayed)
ActionView::Template::Error: undefined method `is_admin?' for nil:NilClass