From e5009835bd78410cd3d0857ac1d32ed84ecc575d Mon Sep 17 00:00:00 2001
From: Jason Poon <git@jasonpoon.ca>
Date: Mon, 23 Jul 2018 23:53:45 -0700
Subject: [PATCH] fix: handle non-string remapped key. closes #2873

---
 src/configuration/notation.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/configuration/notation.ts b/src/configuration/notation.ts
index 5acf86c72..9d54a8d03 100644
--- a/src/configuration/notation.ts
+++ b/src/configuration/notation.ts
@@ -19,6 +19,10 @@ export class Notation {
    * (e.g. <space>, <cr>, <leader>)
    */
   public static NormalizeKey(key: string, leaderKey: string): string {
+    if (typeof key !== 'string') {
+      return key;
+    }
+
     if (!this.isSurroundedByAngleBrackets(key) && key.length > 1) {
       key = `<${key.toLocaleLowerCase()}>`;
     }