patch 8.1.1597: cannot scroll a popup window with the mouse commit https://github.com/vim/vim/commit/68acb41f990405cb5ccd33fcba71a5d499c82974 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jun 26 03:40:36 2019 +0200 patch 8.1.1597: cannot scroll a popup window with the mouse Problem: Cannot scroll a popup window with the mouse. Solution: If the popup window has a scrollbar let the mouse scroll wheel scroll the window.

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