From dce3b7936069c0ef97d4f3470f156bfb6c78584c Mon Sep 17 00:00:00 2001
From: ByteHamster <info@bytehamster.com>
Date: Sun, 21 Nov 2021 19:57:46 +0100
Subject: [PATCH] Backport null guid sync errors

---
 .../java/de/danoeh/antennapod/core/sync/GuidValidator.java     | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/core/src/main/java/de/danoeh/antennapod/core/sync/GuidValidator.java b/core/src/main/java/de/danoeh/antennapod/core/sync/GuidValidator.java
index 6d80a6457..74e5d5cdf 100644
--- a/core/src/main/java/de/danoeh/antennapod/core/sync/GuidValidator.java
+++ b/core/src/main/java/de/danoeh/antennapod/core/sync/GuidValidator.java
@@ -4,7 +4,8 @@ public class GuidValidator {
 
     public static boolean isValidGuid(String guid) {
         return guid != null
-                && !guid.trim().isEmpty();
+                && !guid.trim().isEmpty()
+                && !guid.equals("null");
     }
 }