lib.normalize-ip6-addr: only normalize addrs w/o ::

1 files changed, 5 insertions, 1 deletions

diff --git a/lib/default.nix b/lib/default.nix
index 54597e5fd..e352c7be9 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -107,7 +107,11 @@ let
           in
             a: concatStringsSep ":" (map f (splitString ":" a));
       in
-        a: toLower (group-zeros (drop-leading-zeros a));
+        a:
+          toLower
+            (if test ".*::.*" a
+              then a
+              else group-zeros (drop-leading-zeros a));
   };
 in