From 6dd97838b423a595e3a8a66f26ce85052c11306f Mon Sep 17 00:00:00 2001
From: Luka <krsnik.luka92@gmail.com>
Date: Mon, 19 Oct 2020 15:40:43 +0200
Subject: [PATCH] Added fix for when two restrictions are satisfied with the
 same word.

---
 luscenje_struktur/component.py | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/luscenje_struktur/component.py b/luscenje_struktur/component.py
index a0a7668..5a46120 100644
--- a/luscenje_struktur/component.py
+++ b/luscenje_struktur/component.py
@@ -109,6 +109,8 @@ class Component:
             for tr in to_ret:
                 # make sure that one word is not used twice in same to_ret
                 new_to_ret.extend([{**dict(tr), **m} for m in cmatch if any([m_v not in dict(tr).values() for m_v in m.values()])])
+            if len(new_to_ret) == 0:
+                return None
             to_ret = new_to_ret
             del new_to_ret