From 79129b5c16d299b747b5276afd80b1f325f786ac Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?L=C3=A9o=20Gaspard?= <leo@gaspard.io>
Date: Thu, 14 Jan 2021 11:18:35 +0100
Subject: [PATCH] make fetchgit work when not fetching from master

This is required so that fetching dependencies from a feature branch is
possible.

See also https://github.com/NixOS/nix/pull/3408
---
 lib.nix | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib.nix b/lib.nix
index e347645..84440ba 100644
--- a/lib.nix
+++ b/lib.nix
@@ -108,6 +108,7 @@ rec
                     url = val.git;
                   } // lib.optionalAttrs (val ? rev) {
                     rev = val.rev;
+                    ref = val.rev;
                   } // lib.optionalAttrs (val ? branch) {
                     ref = val.branch;
                   } // lib.optionalAttrs (val ? tag) {