patch 8.1.2198: crash when using :center in autocommand
Problem: Crash when using :center in autocommand.
Solution: Bail out early for an empty line. (Dominique pelle, closes #5095)
diff --git a/src/testdir/test_textformat.vim b/src/testdir/test_textformat.vim
index 13fb50b..3a0552b 100644
--- a/src/testdir/test_textformat.vim
+++ b/src/testdir/test_textformat.vim
@@ -1,4 +1,7 @@
" Tests for the various 'formatoptions' settings
+
+source check.vim
+
func Test_text_format()
enew!
@@ -489,3 +492,20 @@
bwipe!
set fo& ai& bs&
endfunc
+
+func Test_crash_github_issue_5095()
+ CheckFeature autocmd
+
+ " This used to segfault, see https://github.com/vim/vim/issues/5095
+ augroup testing
+ au BufNew x center
+ augroup END
+
+ next! x
+
+ bw
+ augroup testing
+ au!
+ augroup END
+ augroup! testing
+endfunc