From af380e0d8cf4a582e54e97076f7fa39d3fab3b2a Mon Sep 17 00:00:00 2001
From: James Turner <zakalawe@mac.com>
Date: Wed, 18 Jul 2018 15:37:32 +0100
Subject: [PATCH] Fix glitch in custom start date/time persistence

---
 src/GUI/qml/SettingsDateTimePicker.qml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/GUI/qml/SettingsDateTimePicker.qml b/src/GUI/qml/SettingsDateTimePicker.qml
index 43248755c..6b8c66178 100644
--- a/src/GUI/qml/SettingsDateTimePicker.qml
+++ b/src/GUI/qml/SettingsDateTimePicker.qml
@@ -33,7 +33,8 @@ SettingControl {
     function restoreState()
     {
         var rawValue = _config.getValueForKey("", root.setting, defaultValue);
-        if (rawValue.getFullYear() < 1800) {
+        var year = rawValue.getFullYear();
+        if (isNaN(year) || (year < 1800)) {
             // assume it's an invalid date, there doesn't seem to be a better
             // way to check date validity from JS :(
             rawValue = defaultValue