patch 8.1.0341: :argadd in empty buffer changes the buffer name commit https://github.com/vim/vim/commit/32bbd00949c585ea1c9da13197279a175097eddd Author: Bram Moolenaar <Bram@vim.org> Date: Fri Aug 31 23:06:22 2018 +0200 patch 8.1.0341: :argadd in empty buffer changes the buffer name Problem: :argadd in empty buffer changes the buffer name. (Pavol Juhas) Solution: Don't re-use the current buffer when not going to edit the file. (closes #3397) Do re-use the current buffer for :next.

--- a/src/testdir/test_command_count.vim
+++ b/src/testdir/test_command_count.vim
@@ -158,7 +158,9 @@ endfunc
 func Test_command_count_4()
   %argd
   let bufnr = bufnr('$')
-  arga aa bb cc dd ee ff
+  next aa bb cc dd ee ff
+  call assert_equal(bufnr, bufnr('%'))
+
   3argu
   let args = []
   .,$-argdo call add(args, expand('%'))