From f5235b16343816b02ceef56d1e753cb0167c6b03 Mon Sep 17 00:00:00 2001
From: Numerlor <25886452+Numerlor@users.noreply.github.com>
Date: Mon, 11 Jan 2021 02:42:19 +0100
Subject: Check for containment instead of always getting the value from the
 dict

Getting the value from a defaultdict will always create the key for it,
creating unnecessary entries every time a symbol is fetched from the bot
---
 bot/exts/info/doc/_cog.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/bot/exts/info/doc/_cog.py b/bot/exts/info/doc/_cog.py
index 822c984d7..b35469787 100644
--- a/bot/exts/info/doc/_cog.py
+++ b/bot/exts/info/doc/_cog.py
@@ -267,8 +267,9 @@ class DocCog(commands.Cog):
             description=markdown
         )
         # Show all symbols with the same name that were renamed in the footer.
-        if renamed_symbols := self.renamed_symbols[symbol]:
-            footer_text = f"Moved: {textwrap.shorten(', '.join(renamed_symbols), 100, placeholder=' ...')}"
+        if symbol in self.renamed_symbols:
+            renamed_symbols = ', '.join(self.renamed_symbols[symbol])
+            footer_text = f"Moved: {textwrap.shorten(renamed_symbols, 100, placeholder=' ...')}"
         else:
             footer_text = ""
         embed.set_footer(text=footer_text)
-- 
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