patch 8.1.1843: might be freeing memory that was not allocated commit https://github.com/vim/vim/commit/f077db24230d10ef9a66ae14da34b639464d8fa2 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Aug 13 00:18:24 2019 +0200 patch 8.1.1843: might be freeing memory that was not allocated Problem: Might be freeing memory that was not allocated. Solution: Have next_fenc() set the fenc_alloced flag. (closes https://github.com/vim/vim/issues/4804)