fixes #5914

src/upgrades/1.6.0/clear-stale-digest-template.js

@@ -0,0 +1,31 @@
+'use strict';
+
+var meta = require('../../meta');
+
+var async = require('async');
+var crypto = require('crypto');
+
+module.exports = {
+	name: 'Clearing stale digest templates that were accidentally saved as custom',
+	timestamp: Date.UTC(2017, 8, 6),
+	method: function (callback) {
+		var matches = [
+			'112e541b40023d6530dd44df4b0d9c5d',		// digest @ 75917e25b3b5ad7bed8ed0c36433fb35c9ab33eb
+			'110b8805f70395b0282fd10555059e9f',		// digest @ 9b02bb8f51f0e47c6e335578f776ffc17bc03537
+			'9538e7249edb369b2a25b03f2bd3282b',		// digest @ 3314ab4b83138c7ae579ac1f1f463098b8c2d414
+		];
+
+		async.waterfall([
+			async.apply(meta.configs.getFields, ['email:custom:digest']),
+			function (fieldset, next) {
+				var hash = fieldset['email:custom:digest'] ? crypto.createHash('md5').update(fieldset['email:custom:digest']).digest('hex') : null;
+
+				if (matches.includes(hash)) {
+					meta.configs.remove('email:custom:digest', next);
+				} else {
+					setImmediate(next);
+				}
+			},
+		], callback);
+	},
+};