patch 8.2.3582: reading uninitialized memory when giving spell suggestions
Problem: Reading uninitialized memory when giving spell suggestions.
Solution: Check that preword is not empty.
diff --git a/src/testdir/test_spell.vim b/src/testdir/test_spell.vim
index a3a9621..b7437fd 100644
--- a/src/testdir/test_spell.vim
+++ b/src/testdir/test_spell.vim
@@ -839,6 +839,14 @@
call delete('XtestSpell')
endfunc
+func Test_spell_single_word()
+ new
+ silent! norm 0R00
+ spell! ßÂ
+ silent 0norm 0r$ Dvz=
+ bwipe!
+endfunc
+
let g:test_data_aff1 = [
\"SET ISO8859-1",
\"TRY esianrtolcdugmphbyfvkwjkqxz-\xEB\xE9\xE8\xEA\xEF\xEE\xE4\xE0\xE2\xF6\xFC\xFB'ESIANRTOLCDUGMPHBYFVKWJKQXZ",