Allow URLs which contain encoded path separators

This is to resolve the issue with objects containing slash in the name
not correctly synced in multisite environments.

Closes-Bug: #1974138
Change-Id: I71ac000bb4754c9cb987d703f145dc2a5ff032ad
(cherry picked from commit 8a844bc)

templates/openstack_https_frontend.conf

@@ -18,6 +18,7 @@ Listen {{ ext_port }}
     # See LP 1484489 - this is to support <= 2.4.7 and >= 2.4.8
     SSLCertificateChainFile /etc/apache2/ssl/{{ namespace }}/cert_{{ endpoint }}
     SSLCertificateKeyFile /etc/apache2/ssl/{{ namespace }}/key_{{ endpoint }}
+    AllowEncodedSlashes On
     ProxyPass / http://localhost:{{ int }}/ nocanon
     ProxyPassReverse / http://localhost:{{ int }}/
     ProxyPreserveHost on