patch 8.2.1678: crash when using ":set" after ":ownsyntax"
Problem: Crash when using ":set" after ":ownsyntax".
Solution: Make sure 'spelloptions' is not NULL. (closes #6950)
diff --git a/src/testdir/test_syntax.vim b/src/testdir/test_syntax.vim
index cd06892..8a02185 100644
--- a/src/testdir/test_syntax.vim
+++ b/src/testdir/test_syntax.vim
@@ -428,7 +428,11 @@
call setline(1, '#define FOO')
syntax on
set filetype=c
+
ownsyntax perl
+ " this should not crash
+ set
+
call assert_equal('perlComment', synIDattr(synID(line('.'), col('.'), 1), 'name'))
call assert_equal('c', b:current_syntax)
call assert_equal('perl', w:current_syntax)