Multi::Anime: don't crash when anidb returns an invalid or empty year

Like as with Steins;Gate, where the year isn't known.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/Multi/Anime.pm b/lib/Multi/Anime.pm
index 05852e49..dd32782d 100644
--- a/lib/Multi/Anime.pm
+++ b/lib/Multi/Anime.pm
@@ -230,7 +230,7 @@ sub receivepacket { # input, wheelid
     }
     $col[1] = undef if !$col[1];
     $col[2] = undef if !$col[2] || $col[2] =~ /^0,/;
-    $col[3] = $1 if $col[3] =~ /^([0-9]+)/; # remove multi-year stuff
+    $col[3] = $col[3] =~ /^([0-9]+)/ ? $1 : undef;
     $col[3] = undef if !$col[3];
     $col[4] = $_[HEAP]{anime_types}{ lc($col[4]) };
     $col[5] = undef if !$col[5];