library/roles/apache: Fix the worker modules loading, again.

apache/defaults/main.yml

@@ -16,10 +16,10 @@ apache_packages:
 
 # Only one can be present at the same time. It needs to be listed as the last one
 apache_worker_modules:
-  - { name: 'mpm_{{ apache_mpm_mode }}', state: 'present' }
 #  - { name: 'mpm_itm', state: 'absent' }
   - { name: 'mpm_event', state: 'absent' }
   - { name: 'mpm_prefork', state: 'absent' }
+  - { name: 'mpm_{{ apache_mpm_mode }}', state: 'present' }
 
 apache_default_modules:
   - headers

apache/tasks/apache.yml

@@ -11,7 +11,7 @@
   tags: [ 'apache', 'apache_additional_packages' ]
 
 - name: Load the required worker module
-  apache2_module: name={{ item.name }} state={{ item.state }}
+  apache2_module: name={{ item.name }} state={{ item.state }} force=yes
   with_items: '{{ apache_worker_modules }}'
   when: is_trusty
   notify: apache2 restart