From 13c61bae30c3a8cf610623c094f2aa0a95fbf035 Mon Sep 17 00:00:00 2001
From: Amyn <amynbe@gmail.com>
Date: Sat, 2 May 2020 19:21:27 +0100
Subject: [PATCH] Do not source history-substring-search if already loaded
 (#1830)

---
 modules/history-substring-search/init.zsh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/modules/history-substring-search/init.zsh b/modules/history-substring-search/init.zsh
index d3ee3a1..0de7891 100644
--- a/modules/history-substring-search/init.zsh
+++ b/modules/history-substring-search/init.zsh
@@ -10,7 +10,9 @@
 pmodload 'editor'
 
 # Source module files.
-source "${0:h}/external/zsh-history-substring-search.zsh" || return 1
+if (( ! $+functions[history-substring-search-up] )); then
+  source "${0:h}/external/zsh-history-substring-search.zsh" || return 1
+fi
 
 #
 # Search