patch 8.2.1563: Vim9: error when using '%" with setbufvar() r getbufvar() Commit: https://github.com/vim/vim/commit/6f84b6db10ab86bca85e33f3fc6ee735eec8bbe5 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Sep 1 23:16:32 2020 +0200 patch 8.2.1563: Vim9: error when using '%" with setbufvar() r getbufvar() Problem: Vim9: error when using '%" with setbufvar() or getbufvar(). Solution: Use tv_get_buf_from_arg(). (closes https://github.com/vim/vim/issues/6816)

--- a/src/testdir/test_vim9_func.vim
+++ b/src/testdir/test_vim9_func.vim
@@ -1426,6 +1426,9 @@ def Test_setbufvar()
    settabwinvar(1, 1, '&ts', 15)
    assert_equal(15, &ts)
    setlocal ts=8
+
+   setbufvar('%', 'myvar', 123)
+   assert_equal(123, getbufvar('%', 'myvar'))
 enddef
 
 def Test_setreg()