sequencer (rebase -i): record interrupted commits in rewritten, too

When continuing after a `pick` command failed, we want that commit
to show up in the rewritten-list (and its notes to be rewritten), too.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

sequencer.c

@@ -2060,6 +2060,14 @@ int sequencer_continue(struct replay_opts *opts)
 			goto release_todo_list;
 		}
 		todo_list.current++;
+	} else if (file_exists(rebase_path_stopped_sha())) {
+		struct strbuf buf = STRBUF_INIT;
+		struct object_id oid;
+
+		if (read_oneliner(&buf, rebase_path_stopped_sha(), 1) &&
+		    !get_sha1_committish(buf.buf, oid.hash))
+			record_in_rewritten(&oid, peek_command(&todo_list, 0));
+		strbuf_release(&buf);
 	}
 
 	res = pick_commits(&todo_list, opts);