From 5319ddf7dc2adc3d54eb9d498804f5c1576764d4 Mon Sep 17 00:00:00 2001
From: Robert Hensing <robert@roberthensing.nl>
Date: Wed, 23 Nov 2022 12:40:42 +0000
Subject: [PATCH] lib.concatMapAttrs: Simplify stack trace

---
 lib/attrsets.nix | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lib/attrsets.nix b/lib/attrsets.nix
index 1f11eaaa823d9..73b71f68db799 100644
--- a/lib/attrsets.nix
+++ b/lib/attrsets.nix
@@ -123,7 +123,11 @@ rec {
          { x = "a"; y = "b"; }
        => { x = "a"; xa = "a"; y = "b"; yb = "b"; }
   */
-  concatMapAttrs = f: flip pipe [ (mapAttrs f) attrValues (foldl' mergeAttrs { }) ];
+  concatMapAttrs = f: v:
+    foldl' mergeAttrs { }
+      (attrValues
+        (mapAttrs f v)
+      );
 
 
   /* Update or set specific paths of an attribute set.