From 531c40a059d24883b35b6282e13a8a0047fb0cb9 Mon Sep 17 00:00:00 2001
From: Maurice Parker <mo@vincode.io>
Date: Sun, 19 Jan 2020 22:52:45 -0700
Subject: [PATCH] Escape special XML characters for external folder id.  Issue
 #1659

---
 Frameworks/Account/Folder.swift | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Frameworks/Account/Folder.swift b/Frameworks/Account/Folder.swift
index 2123da05b..1cff74267 100644
--- a/Frameworks/Account/Folder.swift
+++ b/Frameworks/Account/Folder.swift
@@ -177,7 +177,7 @@ extension Folder: OPMLRepresentable {
 		
 		let attrExternalID: String = {
 			if allowCustomAttributes, let externalID = externalID {
-				return " nnw_externalID=\"\(externalID)\""
+				return " nnw_externalID=\"\(externalID.escapingSpecialXMLCharacters)\""
 			} else {
 				return ""
 			}