patch 8.2.4212: window title test still fails in some configurations
Problem: Window title test still fails in some configurations.
Solution: Explicitly set the 'title' option.
diff --git a/src/testdir/test_functions.vim b/src/testdir/test_functions.vim
index edd03e3..917e89f 100644
--- a/src/testdir/test_functions.vim
+++ b/src/testdir/test_functions.vim
@@ -1637,6 +1637,7 @@
endif
let lines =<< trim END
+ set title
edit Xa.txt
let g:buf = bufadd('Xb.txt')
inoremap <F2> <C-R>=setbufvar(g:buf, '&autoindent', 1) ?? ''<CR>