Limit conn: returned to the old behavior of using the first actual limit on

the way.

It was unintentionally changed in r4272, so that it could only limit the first
location where the processing of the request has reached PREACCESS phase.

src/http/modules/ngx_http_limit_conn_module.c

@@ -159,8 +159,6 @@ ngx_http_limit_conn_handler(ngx_http_request_t *r)
         return NGX_DECLINED;
     }
 
-    r->main->limit_conn_set = 1;
-
     lccf = ngx_http_get_module_loc_conf(r, ngx_http_limit_conn_module);
     limits = lccf->limits.elts;
 
@@ -187,6 +185,8 @@ ngx_http_limit_conn_handler(ngx_http_request_t *r)
             continue;
         }
 
+        r->main->limit_conn_set = 1;
+
         hash = ngx_crc32_short(vv->data, len);
 
         shpool = (ngx_slab_pool_t *) limits[i].shm_zone->shm.addr;