1 files changed, 22 insertions, 0 deletions
diff --git a/src/nvim/testdir/test_autocmd.vim b/src/nvim/testdir/test_autocmd.vim
index 1c2f86a584..89e3c9927b 100644
--- a/src/nvim/testdir/test_autocmd.vim
+++ b/src/nvim/testdir/test_autocmd.vim
@@ -2614,6 +2614,28 @@ func Test_BufWrite_lockmarks()
   call delete('Xtest2')
 endfunc
 
+func Test_FileType_spell()
+  if !isdirectory('/tmp')
+    throw "Skipped: requires /tmp directory"
+  endif
+
+  " this was crashing with an invalid free()
+  setglobal spellfile=/tmp/en.utf-8.add
+  augroup crash
+    autocmd!
+    autocmd BufNewFile,BufReadPost crashfile setf somefiletype
+    autocmd BufNewFile,BufReadPost crashfile set ft=anotherfiletype
+    autocmd FileType anotherfiletype setlocal spell
+  augroup END
+  func! NoCrash() abort
+    edit /tmp/crashfile
+  endfunc
+  call NoCrash()
+
+  au! crash
+  setglobal spellfile=
+endfunc
+
 " Test closing a window or editing another buffer from a FileChangedRO handler
 " in a readonly buffer
 func Test_FileChangedRO_winclose()