- set mediafle.list_of_speakers required=false

- use submodule backend with generated models.py
- fix bug initial-data.json MI5 -> Mi7, because file data represents MI7

.github/workflows/md5_check_initial-data.yml

@@ -21,4 +21,4 @@ jobs:
         run: md5sum docker/initial-data.json
 
       - name: Validate and protect initial-data.json
-        run: echo "eb70fc8581fc011b5da4b022068564b9  docker/initial-data.json" | md5sum -c -
+        run: echo "1bd1aa2d687de8b21cabe0274c3e6779  docker/initial-data.json" | md5sum -c -

docker/initial-data.json

@@ -1,5 +1,5 @@
 {
-    "_migration_index": 5,
+    "_migration_index": 7,
     "organization": {
         "1": {
             "id": 1,

docs/models.yml

@@ -2882,7 +2882,7 @@ mediafile:
     on_delete: CASCADE
     equal_fields: meeting_id
     restriction_mode: B
-    required: true
+    required: false
   projection_ids:
     type: relation-list
     to: projection/content_object_id

openslides-backend

@@ -1 +1 @@
-Subproject commit 10a728f826945de6fbd3b9e16360fceda46cd778
+Subproject commit b6ab32a666a6c9986674ba50d25cf07c2d80129d