filter-branch: add git_commit_non_empty_tree and --prune-empty.

diff --git a/builtin-read-tree.c b/builtin-read-tree.c
index 0706c958181c54aeb18d91f6e3dbe7c9f572b94d..38fef34d3fb6c24ab89043951f1ecf6c96e9bf51 100644 (file)
--- a/builtin-read-tree.c
+++ b/builtin-read-tree.c
@@ -206,7 +206,7 @@ int cmd_read_tree(int argc, const char **argv, const char *unused_prefix)
                        break;
                case 2:
                        opts.fn = twoway_merge;
-                       opts.initial_checkout = !active_nr;
+                       opts.initial_checkout = is_cache_unborn();
                        break;
                case 3:
                default: