From 5d35424445a4fbdd2f46f57614e8a6de98177653 Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <edolstra@gmail.com>
Date: Mon, 14 Oct 2024 16:17:18 +0200
Subject: [PATCH] path fetcher: Allow the lastModified attribute to be
 overriden again

Fixes #11660.
---
 src/libfetchers/path.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/libfetchers/path.cc b/src/libfetchers/path.cc
index fca0df84b..fe1534aba 100644
--- a/src/libfetchers/path.cc
+++ b/src/libfetchers/path.cc
@@ -157,7 +157,11 @@ struct PathInputScheme : InputScheme
             });
             storePath = store->addToStoreFromDump(*src, "source");
         }
-        input.attrs.insert_or_assign("lastModified", uint64_t(mtime));
+
+        /* Trust the lastModified value supplied by the user, if
+           any. It's not a "secure" attribute so we don't care. */
+        if (!input.getLastModified())
+            input.attrs.insert_or_assign("lastModified", uint64_t(mtime));
 
         return {makeStorePathAccessor(store, *storePath), std::move(input)};
     }