#3200 reverted some behaviour of select boxes in the settings page so it now has static lists of environment, orgs and locations which are determined when the Rails server starts. These lists should be loaded dynamically on page load.

The lists of objects used to be loaded inside the helper, which ran during page rendering:

https://github.com/theforeman/foreman/commit/ad603e4023c5400c51674f1fa3635565f7b3b552#diff-99f01fed5094bece4bbc97c882f4b666L15

These are now hardcoded lists in the settings loader, which runs at startup:

https://github.com/theforeman/foreman/commit/ad603e4023c5400c51674f1fa3635565f7b3b552#diff-110b9dfb3bec067f495173daa77532f3R10

The :collection should probably accept a lambda or something, which would also fix this situation for plugins.