patch 8.1.1870: using :pedit from a help file sets help filetype commit https://github.com/vim/vim/commit/026587b35c42301bcc2214207346b62ef2efed41 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Aug 17 15:08:00 2019 +0200 patch 8.1.1870: using :pedit from a help file sets help filetype Problem: Using :pedit from a help file sets the preview window to help filetype. (Wang Shidong) Solution: Do not set "keep_help_flag". (closes #3536)

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