lib: return NULL from n_d_get_default_indexopts on error

This is a rare and probably serious programming error, so better not
to silently return a default value.

1 files changed, 0 insertions, 1 deletions

diff --git a/test/T562-lib-database.sh b/test/T562-lib-database.sh
index 32fda72e..ce62eaa8 100755
--- a/test/T562-lib-database.sh
+++ b/test/T562-lib-database.sh
@@ -373,7 +373,6 @@ EOF
 test_expect_equal_file EXPECTED OUTPUT
 
 test_begin_subtest "get indexopts from closed database"
-test_subtest_known_broken
 cat c_head - c_tail <<'EOF' | test_C ${MAIL_DIR}
     {
         notmuch_indexopts_t *result;