[Octavia][osp16.1] Deploying Octavia with OctaviaLogOffload fails with error "Could not find or access templates/10-octavia.conf.j2"

When deploying Octavia in Customized-Job [1] with the following OVERCLOUD_TEMPLATES	
parameters:

tripleo_heat_templates:
    - /usr/share/openstack-tripleo-heat-templates/environments/services/octavia.yaml

custom_templates:
    parameter_defaults:
         OctaviaLogOffload: true

The job fails [2] in the Overcloud stage with the following error message:


tl;dr:
"Could not find or access 'templates/10-octavia.conf.j2'"

Full message from overcloud_install.log:
[controller-1]\nchanged: [controller-2]\n\nTASK [octavia-controller-post-config : create rsyslog 10-octavia.conf] *********\nWednesday 15 July 2020  11:48:45 -0400 (0:00:00.516)       0:02:48.245 ******** \nfatal: [controller-0]: FAILED! => {\"changed\": false, \"msg\": \"Could not find or access 'templates/10-octavia.conf.j2'\\nSearched in:\\n\\t/usr/share/ansible/roles/octavia-controller-post-config/templates/templates/10-octavia.conf.j2\\n\\t/usr/share/ansible/roles/octavia-controller-post-config/templates/10-octavia.conf.j2\\n\\t/usr/share/ansible/roles/octavia-controller-post-config/tasks/templates/templates/10-octavia.conf.j2\\n\\t/usr/share/ansible/roles/octavia-controller-post-config/tasks/templates/10-octavia.conf.j2\\n\\t/usr/share/ansible/tripleo-playbooks/templates/templates/10-octavia.conf.j2\\n\\t/usr/share/ansible/tripleo-playbooks/templates/10-octavia.conf.j2 on the Ansible Controller.\\nIf you are using a module and expect the file to exist on the remote, see the remote_src option\"}\nfatal: [controller-1]: FAILED! => {\"changed\": false, \"msg\": \"Could not find or access 'templates/10-octavia.conf.j2'\\nSearched in:\\n\\t/usr/share/ansible/roles/octavia-controller-post-config/templates/templates/10-octavia.conf.j2\\n\\t/usr/share/ansible/roles/octavia-controller-post-config/templates/10-octavia.conf.j2\\n\\t/usr/share/ansible/roles/octavia-controller-post-config/tasks/templates/templates/10-octavia.conf.j2\\n\\t/usr/share/ansible/roles/octavia-controller-post-config/tasks/templates/10-octavia.conf.j2\\n\\t/usr/share/ansible/tripleo-playbooks/templates/templates/10-octavia.conf.j2\\n\\t/usr/share/ansible/tripleo-playbooks/templates/10-octavia.conf.j2 on the Ansible Controller.\\nIf you are using a module and expect the file to exist on the remote, see the remote_src option\"}\nfatal: [controller-2]: FAILED! => {\"changed\": false, \"msg\": \"Could not find or access 'templates/10-octavia.conf.j2'\\nSearched in:\\n\\t/usr/share/ansible/roles/octavia-controller-post-config/templates/templates/10-octavia.conf.j2\\n\\t/usr/share/ansible/roles/octavia-controller-post-config/templates/10-octavia.conf.j2\\n\\t/usr/share/ansible/roles/octavia-controller-post-config/tasks/templates/templates/10-octavia.conf.j2\\n\\t/usr/share/ansible/roles/octavia-controller-post-config/tasks/templates/10-octavia.conf.j2\\n\\t/usr/share/ansible/tripleo-playbooks/templates/templates/10-octavia.conf.j2\\n\\t/usr/share/ansible/tripleo-playbooks/templates/10-octavia.conf.j2 on the Ansible Controller.\\nIf you are using a module and expect the file to exist on the remote, see the remote_src option\"}\n\nPLAY RECAP *********************************************************************\ncontroller-0               : ok=69   changed=37   unreachable=0    failed=1    skipped=0    rescued=0    ignored=0   \ncontroller-1               : ok=37   changed=15   unreachable=0    failed=1    skipped=0    rescued=0    ignored=0   \ncontroller-2               : ok=37   changed=15   unreachable=0    failed=1    skipped=0    rescued=0    ignored=0   \nundercloud-0               : ok=15   changed=6    unreachable=0    failed=0    skipped=15   rescued=0    ignored=0   \n\nWednesday 15 July 2020  11:48:45 -0400 (0:00:00.341)       0:02:48.587 ******** \n=============================================================================== 


I see that there is a bug upstream:
https://bugs.launchpad.net/tripleo/+bug/1887516


[1] https://rhos-qe-jenkins.rhev-ci-vms.eng.rdu2.redhat.com/job/OSPD-Customized-Deployment-virt/
[2] https://rhos-qe-jenkins.rhev-ci-vms.eng.rdu2.redhat.com/job/OSPD-Customized-Deployment-virt/15996/