commit https://github.com/vim/vim/commit/358308dd99abdd56c6540339e505585d8db7bdfe Author: Bram Moolenaar <Bram@vim.org> Date: Wed Aug 24 21:21:26 2016 +0200 patch 7.4.2248 Problem: When cancelling the :ptjump prompt a preview window is opened for a following command. Solution: Reset g_do_tagpreview. (Hirohito Higashi) Add a test. Avoid that the test runner gets stuck in trying to close a window.