fix custom subdomain

etc/snippets_subdomain.conf

@@ -12,9 +12,6 @@ client_max_body_size 32m;
 if ($dc_blog_id = '') {
         set $dc_blog_id default;
 }
-if ($dc_blog_id = 'stable') {
-        set $dc_blog_id default;
-}
 
 # Blogs public paths
 location ~ /public {

www/servers/subdomain.conf

@@ -9,6 +9,11 @@ server {
     # - ...
     server_name ~^(?<dc_blog_id>\w*?)?\.?(\w+\.\w+)$;
 
+    # Redirect a particular subdomain
+    if ($dc_blog_id = 'blog') {
+            set $dc_blog_id default;
+    }
+
     # To use custom configuration only use
     # include /etc/nginx/snippets/snippets_common.conf;
     # Adapt to your needs here the content of