copr-be-dev: try building epel-8 against rhel+epel, take #3

We need to override the files by symlink after running the
copr-update-builder script.

roles/copr/backend/files/provision/provision_builder_tasks.yml

@@ -96,20 +96,6 @@
   when:
   - prepare_base_image is not defined
 
-- name: "Link Mock EPEL 8 configs to rhel+epel-8"
-  file:
-    src: "/etc/mock/rhel+epel-8-{{ item }}.cfg"
-    force: true
-    path: "/etc/mock/epel-8-{{ item }}.cfg"
-    state: link
-  loop:
-    - x86_64
-    - aarch64
-    - ppc64le
-  tags:
-  - provision_config
-  when: devel|bool
-
 - name: don't remove rpmnew files, but always use them
   lineinfile: state=absent regexp='^find /etc/mock.*-delete'
               path=/usr/bin/copr-update-builder
@@ -129,6 +115,20 @@
 #   shell: /usr/bin/copr-update-builder
 #   when: mock_updated.changed
 
+- name: "Link Mock EPEL 8 configs to rhel+epel-8"
+  file:
+    src: "/etc/mock/rhel+epel-8-{{ item }}.cfg"
+    force: true
+    path: "/etc/mock/epel-8-{{ item }}.cfg"
+    state: link
+  loop:
+    - x86_64
+    - aarch64
+    - ppc64le
+  tags:
+  - provision_config
+  when: devel|bool
+
 - name: put copr-rpmbuild configuration file in the right place
   copy: src=files/main.ini dest=/etc/copr-rpmbuild/main.ini