'
cp -f .git/HEAD.orig .git/HEAD
+test_expect_success "delete symref without dereference when the referred ref is packed" '
+ echo foo >foo.c &&
+ git add foo.c &&
+ git commit -m foo &&
+ git pack-refs --all &&
+ git update-ref --no-deref -d HEAD &&
+ ! test -f .git/HEAD
+'
+cp -f .git/HEAD.orig .git/HEAD
+git update-ref -d $m
+
test_expect_success '(not) create HEAD with old sha1' "
test_must_fail git update-ref HEAD $A $B
"