disambiguate OverIdx and Over by field name

We'll use {oidx} as the common field name for the read-write
OverIdx, here, to disambiguate it from the read-only {over}
field.  This hopefully makes it clearer which code paths are
read-only and which are read-write.

1 files changed, 1 insertions, 1 deletions

diff --git a/t/search.t b/t/search.t
index e2290ecd..f026e509 100644
--- a/t/search.t
+++ b/t/search.t
@@ -161,7 +161,7 @@ are real
 EOF
         my $ghost_id = $rw->add_message($was_ghost);
         is($ghost_id, int($ghost_id), "ghost_id is an integer: $ghost_id");
-        my $msgs = $rw->{over}->get_thread('ghost-message@s');
+        my $msgs = $rw->{oidx}->get_thread('ghost-message@s');
         is(scalar(@$msgs), 2, 'got both messages in ghost thread');
         foreach (qw(sid tid)) {
                 is($msgs->[0]->{$_}, $msgs->[1]->{$_}, "{$_} match");