patch 8.2.0381: using freed memory with :lvimgrep and autocommand Commit: https://github.com/vim/vim/commit/2573af3519ad062ddad647b97e32090f106f2ac1 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Mar 14 17:21:34 2020 +0100 patch 8.2.0381: using freed memory with :lvimgrep and autocommand Problem: Using freed memory with :lvimgrep and autocommand. (extracted from POC by Dominique Pelle) Solution: Avoid deleting a dummy buffer used in a window. (closes #5777)

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