Add patch to Fix autogenerated slugs

patches/Fix-autogenerated-slugs.patch

@@ -0,0 +1,29 @@
+From 35449e448200598d5b002d8e55ab8ece9ede0217 Mon Sep 17 00:00:00 2001
+From: Donald Buczek <buczek@molgen.mpg.de>
+Date: Sun, 23 Aug 2020 21:17:21 +0200
+Subject: [PATCH] Fix autogenerated slugs
+
+Fix bug in wagtail_modeltranslation which disables the autogeneration of
+slugs.
+
+See https://github.com/infoportugal/wagtail-modeltranslation/issues/293
+---
+ .../site-packages/wagtail_modeltranslation/wagtail_hooks.py     | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/lib/python3.7/site-packages/wagtail_modeltranslation/wagtail_hooks.py b/lib/python3.7/site-packages/wagtail_modeltranslation/wagtail_hooks.py
+index 1bbff88..3b3d61f 100644
+--- a/lib/python3.7/site-packages/wagtail_modeltranslation/wagtail_hooks.py
++++ b/lib/python3.7/site-packages/wagtail_modeltranslation/wagtail_hooks.py
+@@ -54,7 +54,7 @@ def translated_slugs():
+             languages: [{languages}],
+             defaultLanguage: '{language_code}',
+             viewEditString: '{view_edit_string}',
+-            translate_slugs: '{translate_slugs}',
++            translate_slugs: {translate_slugs},
+         }};
+     </script>
+     """.format(
+-- 
+2.26.2
+