From 21677a6bd861ff4b15389dc909bae58201de86ec Mon Sep 17 00:00:00 2001
From: Yueh-Shun Li <shamrocklee@posteo.net>
Date: Wed, 29 Oct 2025 21:59:05 +0800
Subject: [PATCH] fetchgit: pass rev as revCustom and make overridable

---
 pkgs/build-support/fetchgit/default.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/build-support/fetchgit/default.nix b/pkgs/build-support/fetchgit/default.nix
index 9b6085f1c7fd..445b11347c63 100644
--- a/pkgs/build-support/fetchgit/default.nix
+++ b/pkgs/build-support/fetchgit/default.nix
@@ -62,7 +62,7 @@ lib.makeOverridable (
           rev ? null,
           name ? urlToName {
             inherit url;
-            rev = lib.revOrTag rev finalAttrs.tag;
+            rev = lib.revOrTag finalAttrs.revCustom finalAttrs.tag;
             # when rootDir is specified, avoid invalidating the result when rev changes
             append = if rootDir != "" then "-${lib.strings.sanitizeDerivationName rootDir}" else "";
           },
@@ -174,9 +174,10 @@ lib.makeOverridable (
               gitConfigFile
               ;
             inherit tag;
+            revCustom = rev;
             rev = getRevWithTag {
               inherit (finalAttrs) tag;
-              inherit rev;
+              rev = finalAttrs.revCustom;
             };
 
             postHook =