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.

|f+0&#ffffff0|o@1| |3| @64
|f+8&&|o@1| |4| @64
|f+0&&|o@1| |5| @64
|f|o@1| |6| @64
|f|o@1| |7| @64
|f|o@1| |8| @64
|f|o@1| |9| @64
|f|o@1| |1|0| @63
|:|6|,|7|s|/|\|v> @61