From df5b537d21070b4938a849a9517c09bc0cf30a7c Mon Sep 17 00:00:00 2001
From: Mike Foley <mike@polleverywhere.com>
Date: Tue, 2 Dec 2014 17:55:10 -0800
Subject: [PATCH] Don't overwrite $prefix if already bound

---
 sensible.tmux | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sensible.tmux b/sensible.tmux
index de31d9c..bb2ccbd 100755
--- a/sensible.tmux
+++ b/sensible.tmux
@@ -132,7 +132,9 @@ main() {
 		fi
 
 		# pressing `prefix + prefix` sends <prefix> to the shell
-		tmux bind-key "$prefix" send-prefix
+		if key_binding_not_set "$prefix"; then
+			tmux bind-key "$prefix" send-prefix
+		fi
 	fi
 
 	# If Ctrl-a is prefix then `Ctrl-a + a` switches between alternate windows.