From 195ed43b60cc2a2a18adc24e272a3d90466c9bc7 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Wed, 10 Jun 2020 16:24:05 +0200
Subject: [PATCH] Preserve 'isFlake' when not updating a lock file entry

---
 src/libexpr/flake/flake.cc | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/libexpr/flake/flake.cc b/src/libexpr/flake/flake.cc
index f3004557c..4538c03ff 100644
--- a/src/libexpr/flake/flake.cc
+++ b/src/libexpr/flake/flake.cc
@@ -391,7 +391,8 @@ LockedFlake lockFlake(
                         // of a circular reference back to the root.
                         if (lockedNode)
                             fakeInputs.emplace(i.first, FlakeInput {
-                                .ref = lockedNode->originalRef
+                                .ref = lockedNode->originalRef,
+                                .isFlake = lockedNode->isFlake,
                             });
                         else {
                             InputPath path(inputPath);