patch 8.1.1125: libvterm does not handle the window position report commit https://github.com/vim/vim/commit/fa1e90cd4d1bebd66da22df4625f70963f091f17 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Apr 6 17:47:40 2019 +0200 patch 8.1.1125: libvterm does not handle the window position report Problem: Libvterm does not handle the window position report. Solution: Let libvterm call the fallback CSI handler when not handling CSI sequence. Handle the window position report in Vim.

function Test_Comparators()
  try
    let oldisident=&isident
    set isident+=#
    call assert_equal(1, 1 is#1)
  finally
    let &isident=oldisident
  endtry
endfunction