From 7fa9d11512d8268c824d89ada0a5446816f32827 Mon Sep 17 00:00:00 2001
From: Shish <shish@shishnet.org>
Date: Fri, 13 Mar 2020 10:04:12 +0000
Subject: [PATCH] hard-code one bad case

---
 core/imageboard/tag.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/core/imageboard/tag.php b/core/imageboard/tag.php
index e36b249f..5db83ffd 100644
--- a/core/imageboard/tag.php
+++ b/core/imageboard/tag.php
@@ -93,6 +93,8 @@ class Tag
         $tag = preg_replace("/^(\.+[\/\\\\])+/", "", $tag);   # trailing slashes?
         $tag = trim($tag, ", \t\n\r\0\x0B");
 
+        if($tag == ".") $tag = "";  // hard-code one bad case...
+
         if (mb_strlen($tag, 'UTF-8') > 255) {
             throw new ScoreException("The tag below is longer than 255 characters, please use a shorter tag.\n$tag\n");
         }