fix: Improved handling of delete events from collection and document sockets (#1517)

* handle delete events fron collection and document sockets

* handle collection deletes to documents

* rework semantics to always reload after a delete

Co-authored-by: Tom Moor <tom.moor@gmail.com>

app/scenes/Document/components/DataLoader.js

@@ -50,7 +50,8 @@ class DataLoader extends React.Component<Props> {
     // reload from the server otherwise the UI will not know which authorizations
     // the user has
     if (this.document) {
-      const policy = this.props.policies.get(this.document.id);
+      const document = this.document;
+      const policy = this.props.policies.get(document.id);
 
       if (!policy && !this.error) {
         this.loadDocument();