checkout: optimize "git checkout -b <new_branch>"

diff --git a/alloc.c b/alloc.c
index 714df633169df5a2502b27474192c59b24b336a3..c2fc5d68886bf3f74a1f013a3a36c7b5dcad2258 100644 (file)
--- a/alloc.c
+++ b/alloc.c
@@ -109,6 +109,8 @@ void *alloc_commit_node(struct repository *r)
        struct commit *c = alloc_node(r->parsed_objects->commit_state, sizeof(struct commit));
        c->object.type = OBJ_COMMIT;
        c->index = alloc_commit_index(r);
+       c->graph_pos = COMMIT_NOT_FROM_GRAPH;
+       c->generation = GENERATION_NUMBER_INFINITY;
        return c;
 }