I received an answer that worked on the fedora forums.
1. Edit the file /etc/selinux/targeted/modules/active/file_contexts.local and comment/fix the wrong contexts.
In my case this meant changing httpd_mediawiki_rw_content_t to mediawiki_rw_content_t. Then I used
# semanage fcontext -a -t httpd_sys_rw_content_t '/etc/dokuwiki' # semanage fcontext -a -t httpd_sys_rw_content_t '/etc/dokuwiki/users.auth.php' # semanage fcontext -a -t httpd_sys_rw_content_t '/etc/dokuwiki/local.php' # restorecon -R /etc/dokuwiki
to get the files setup properly.
Seems like the dokuwiki selinux package should be setup to do something similar.
Pete