fix fetmeeting admin fieldsets

fet2020/posts/admin.py

@@ -214,6 +214,20 @@ class FetMeetingAdmin(EventAdmin):
     list_display = ["title", "slug", "event_start"]
     list_filter = []
 
+    fieldsets = (
+        (
+            None,
+           {
+                "fields": (
+                    "event_start",
+                    "event_end",
+                    "event_place",
+                    "tags",
+                )
+            }
+        ),
+    )
+
 
 admin.site.register(Event, EventAdmin)
 admin.site.register(News, NewsAdmin)