Cleared caching in staticfiles_storage and get_finder when relevant settings are changed. Backport of 2730dad0d7c425f33f1ecc6cec01fdbf1cdd8376 from master
Cleared caching in staticfiles_storage and get_finder when relevant settings are changed. Backport of 2730dad0d7c425f33f1ecc6cec01fdbf1cdd8376 from master