From 4530efc1e0254f0f53d4682c2a16104ce9441c2c Mon Sep 17 00:00:00 2001
From: Shish <shish@shishnet.org>
Date: Thu, 26 Jan 2012 17:16:06 +0000
Subject: [PATCH] minus on its own was being turned into 'negative null-tag',
 which confused things

---
 core/imageboard.pack.php | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/core/imageboard.pack.php b/core/imageboard.pack.php
index 7030277e..4483a2c2 100644
--- a/core/imageboard.pack.php
+++ b/core/imageboard.pack.php
@@ -591,10 +591,13 @@ class Image {
 		// various types of querylet
 		foreach($terms as $term) {
 			$positive = true;
-			if((strlen($term) > 0) && ($term[0] == '-')) {
+			if($term[0] == '-') {
 				$positive = false;
 				$term = substr($term, 1);
 			}
+			if(strlen($term) == 0) {
+				continue;
+			}
 
 			$term = Tag::resolve_alias($term);