cache-tree: protect against "git prune".

diff --git a/cache-tree.c b/cache-tree.c
index f6d1dd1d7f8f849d543131bfebb4237bb4f53bd3..b34b0bc3177de67d401f2a91d9355f6751e3d0d4 100644 (file)
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -177,7 +177,7 @@ static int update_one(struct cache_tree *it,
        char *buffer;
        int i;
 
-       if (0 <= it->entry_count)
+       if (0 <= it->entry_count && has_sha1_file(it->sha1))
                return it->entry_count;
 
        /*