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-rw-r--r--unpack-trees.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/unpack-trees.c b/unpack-trees.c
index 2344b5e6dd..418cf9a29c 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -1614,8 +1614,8 @@ int unpack_trees(unsigned len, struct tree_desc *t, struct unpack_trees_options
o->merge_size = len;
mark_all_ce_unused(o->src_index);
- if (o->src_index->fsmonitor_last_update)
- o->result.fsmonitor_last_update = o->src_index->fsmonitor_last_update;
+ o->result.fsmonitor_last_update =
+ xstrdup_or_null(o->src_index->fsmonitor_last_update);
/*
* Sparse checkout loop #1: set NEW_SKIP_WORKTREE on existing entries