From bacccc39a9cfd80b62940002f0c656add2aa3619 Mon Sep 17 00:00:00 2001
From: Hans Joachim Kliemeck <h0nIg@users.noreply.github.com>
Date: Tue, 14 Oct 2025 14:53:13 +0000
Subject: [PATCH] stdenv: pURL - fix chaining case (github&submodules using
 fetchgit)

---
 pkgs/build-support/fetchgit/default.nix    | 4 ++--
 pkgs/build-support/fetchgithub/default.nix | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/pkgs/build-support/fetchgit/default.nix b/pkgs/build-support/fetchgit/default.nix
index ed9daa7ff525..581cd1c9a19c 100644
--- a/pkgs/build-support/fetchgit/default.nix
+++ b/pkgs/build-support/fetchgit/default.nix
@@ -187,13 +187,13 @@ lib.makeOverridable (
 
         inherit preferLocalBuild allowedRequisites;
 
-        meta = meta // {
+        meta = lib.recursiveUpdate {
           identifiers.purlParts = {
             type = "generic";
             # https://github.com/package-url/purl-spec/blob/18fd3e395dda53c00bc8b11fe481666dc7b3807a/types-doc/generic-definition.md
             spec = "${name}?vcs_url=${url}@${(lib.revOrTag rev tag)}";
           };
-        };
+        } meta;
 
         passthru = {
           gitRepoUrl = url;
diff --git a/pkgs/build-support/fetchgithub/default.nix b/pkgs/build-support/fetchgithub/default.nix
index 115f8b5e867e..07c4c393ed88 100644
--- a/pkgs/build-support/fetchgithub/default.nix
+++ b/pkgs/build-support/fetchgithub/default.nix
@@ -42,9 +42,8 @@ lib.makeOverridable (
         builtins.unsafeGetAttrPos "rev" args
     );
     baseUrl = "https://${githubBase}/${owner}/${repo}";
-    newMeta =
-      meta
-      // {
+    newMeta = lib.recursiveUpdate (
+      {
         homepage = meta.homepage or baseUrl;
         identifiers.purlParts =
           if githubBase == "github.com" then
@@ -63,7 +62,8 @@ lib.makeOverridable (
       // lib.optionalAttrs (position != null) {
         # to indicate where derivation originates, similar to make-derivation.nix's mkDerivation
         position = "${position.file}:${toString position.line}";
-      };
+      }
+    ) meta;
 
     passthruAttrs = removeAttrs args [
       "owner"