apply: do not patch lines that were already patched

diff --git a/builtin/checkout.c b/builtin/checkout.c
index 757f9a08ddbaf102726a781b06d7294a4638984e..cd7f56e6c4b6e1b1059ffa0eae91b46e579b9e97 100644 (file)
--- a/builtin/checkout.c
+++ b/builtin/checkout.c
@@ -404,7 +404,7 @@ static int merge_working_tree(struct checkout_opts *opts,
                topts.dir->exclude_per_dir = ".gitignore";
                tree = parse_tree_indirect(old->commit ?
                                           old->commit->object.sha1 :
-                                          (unsigned char *)EMPTY_TREE_SHA1_BIN);
+                                          EMPTY_TREE_SHA1_BIN);
                init_tree_desc(&trees[0], tree->buffer, tree->size);
                tree = parse_tree_indirect(new->commit->object.sha1);
                init_tree_desc(&trees[1], tree->buffer, tree->size);