patch 8.1.2210: using negative offset for popup_create() does not work Commit: https://github.com/vim/vim/commit/b754b5bf6d9ac1f3654552973aa6f9c11239af3d Author: Bram Moolenaar <Bram@vim.org> Date: Thu Oct 24 19:25:00 2019 +0200 patch 8.1.2210: using negative offset for popup_create() does not work Problem: Using negative offset for popup_create() does not work. Solution: Use -1 instead of zero. (closes https://github.com/vim/vim/issues/5111)

> +0&#ffffff0@11
|~+0#4040ff13&| @10
|~| @10
|~| @6|o+0#0000001#ffd7ff255|t|h|e
|~+0#4040ff13#ffffff0| @6|r+0#0000001#ffd7ff255| |t|a
|~+0#4040ff13#ffffff0| @6|b+0#0000001#ffd7ff255| @2
|~+0#4040ff13#ffffff0| @6|a+0#0000001#ffd7ff255| |c+0#ff404010&|o
|~+0#4040ff13#ffffff0| @6|m+0#ff404010#ffd7ff255@1|e|n
|~+0#4040ff13#ffffff0| @6|t+0#ff404010#ffd7ff255| +0#0000001&|l|i
| +0#0000000#ffffff0@5|0|,|n+0#0000001#ffd7ff255|e| @1