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Commits 9ffe33a2 and 4352df00 introduce and use a getScreenLineColumns(line) method to provide support for DECDWL (Double-Width) lines. It turns out that under some conditions on resize Screen::_cuY (the current cursor Y position) and ScreenWindow::endWindowLine() can have different ideas of how many lines the terminal has. A test that asserts: - while [ true ]; do echo -e "\e[?1047h"; done - Resize the window, making it smaller BUG: 436327
0ecc366c