From d190e2b406b1ba5b524973de7af4998376c6637a Mon Sep 17 00:00:00 2001
From: Daniel <d.hornung@indiscale.com>
Date: Mon, 4 Apr 2022 16:04:46 +0200
Subject: [PATCH] Additional None-ness check.

---
 src/caosadvancedtools/cfood.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/caosadvancedtools/cfood.py b/src/caosadvancedtools/cfood.py
index ada76f4b..0074d9a1 100644
--- a/src/caosadvancedtools/cfood.py
+++ b/src/caosadvancedtools/cfood.py
@@ -855,6 +855,9 @@ class CMeal():
     def all_groups_equal(cls, m1, m2):
         equal = True
 
+        if m2 is None:
+            return False
+
         for group in cls.matching_groups:
             if (group not in m1.groupdict() or
                     group not in m2.groupdict() or
-- 
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