patch 8.1.1518: crash when setting 'columns' while a popup is visible commit https://github.com/vim/vim/commit/202d982b36d87cf91d992bd7e30d3223bdc72cd9 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Jun 11 21:56:30 2019 +0200 patch 8.1.1518: crash when setting 'columns' while a popup is visible Problem: Crash when setting 'columns' while a popup is visible. Solution: Recompute all positions when clearing the screen. (closes https://github.com/vim/vim/issues/4467)

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