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minor fix
[wolnelektury.git] / apps / catalogue / models.py
diff --git a/apps/catalogue/models.py b/apps/catalogue/models.py
index f2be7d1..4552962 100644 (file)
--- a/apps/catalogue/models.py
+++ b/apps/catalogue/models.py
@@ -558,7 +558,7 @@ class Book(models.Model):
                     tag.save()
                 book_tags.append(tag)
 
-        book.tags = book_tags + book_shelves
+        book.tags = set(book_tags + book_shelves)
 
         book_tag = book.book_tag()