From 02bac8f269615a611bc574aa473b9dc2b18255ef Mon Sep 17 00:00:00 2001
From: Adriane Boyd <adrianeboyd@gmail.com>
Date: Thu, 17 Jun 2021 09:11:01 +0200
Subject: [PATCH] Fix non-deterministic deduplication in Greek lemmatizer
 (#8421)

---
 spacy/lang/el/lemmatizer.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/spacy/lang/el/lemmatizer.py b/spacy/lang/el/lemmatizer.py
index a049601dc..631848af4 100644
--- a/spacy/lang/el/lemmatizer.py
+++ b/spacy/lang/el/lemmatizer.py
@@ -57,6 +57,6 @@ class GreekLemmatizer(Lemmatizer):
             forms.extend(oov_forms)
         if not forms:
             forms.append(string)
-        forms = list(set(forms))
+        forms = list(dict.fromkeys(forms))
         self.cache[cache_key] = forms
         return forms