minor fix

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()
 

diff --git a/lib/librarian b/lib/librarian
index e2bc69b..fec62da 160000 (submodule)
--- a/lib/librarian
+++ b/lib/librarian
@@ -1 +1 @@
-Subproject commit e2bc69b731434e6929686637ba4cf296632138e2
+Subproject commit fec62da2886e29aa0a9233e13fd9cae0ca6076bf