If .domain.com, .sub.domain.com, and .domain-some.com were defined, then .sub.domain.com was matched by .domain.com: wildcard names hash was built incorrectly due to sorting order issue of "." vs "-". They were sorted as com.domain com.domain-some com.domain.sub while they should be sorted as com.domain com.domain.sub com.domain-some for correct hash building

--- a/src/http/modules/ngx_http_map_module.c
+++ b/src/http/modules/ngx_http_map_module.c
@@ -337,7 +337,7 @@ ngx_http_map_cmp_dns_wildcards(const voi
     first = (ngx_hash_key_t *) one;
     second = (ngx_hash_key_t *) two;
 
-    return ngx_strcmp(first->key.data, second->key.data);
+    return ngx_dns_strcmp(first->key.data, second->key.data);
 }