view: handle the topic-free case properly

There may be no topics for a given timestamp range,
so don't attempt to treat `undef' as an arrayref.

1 files changed, 2 insertions, 0 deletions

diff --git a/t/psgi_v2.t b/t/psgi_v2.t
index 2c9387a4..c4f80869 100644
--- a/t/psgi_v2.t
+++ b/t/psgi_v2.t
@@ -250,6 +250,8 @@ test_psgi(sub { $www->call(@_) }, sub {
                 is($old->content, 'old', 'got expected old content');
                 is($new->content, 'new', 'got expected new content');
         }
+        $res = $cb->(GET('/v2test/?t=1970'.'01'.'01'.'000000'));
+        is($res->code, 404, '404 for out-of-range t= param');
 });
 
 done_testing();