patch 8.2.1461: Vim9: string indexes are counted in bytes Commit: https://github.com/vim/vim/commit/e3c37d8ebf9dbbf210fde4a5fb28eb1f2a492a34 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Aug 15 18:39:05 2020 +0200 patch 8.2.1461: Vim9: string indexes are counted in bytes Problem: Vim9: string indexes are counted in bytes. Solution: Use character indexes. (closes https://github.com/vim/vim/issues/6574)