patch 9.0.1531: crash when register contents ends up being invalid Commit: https://github.com/vim/vim/commit/d1ae8366aff286d41e7f5bc513cc0a1af5130aad Author: Bram Moolenaar <Bram@vim.org> Date: Tue May 9 17:09:30 2023 +0100 patch 9.0.1531: crash when register contents ends up being invalid Problem: Crash when register contents ends up being invalid. Solution: Check "y_array" is not NULL.

#!/usr/bin/env python
#
# Server that will accept connections from a Vim channel.
# Used by test_channel.vim.
#
# This requires Python 2.6 or later.

from test_channel import main, ThreadedTCPServer
import socket

class ThreadedTCP6Server(ThreadedTCPServer):
    address_family = socket.AF_INET6

if __name__ == "__main__":
    main("::", 0, ThreadedTCP6Server)