fix deadlock after "cut to note", closes #1030

src/public/app/services/ws.js

@@ -229,7 +229,7 @@ subscribeToMessages(message => {
 async function processSyncRows(syncRows) {
     const missingNoteIds = [];
 
-    for (const {id, entityName, entity} of syncRows) {
+    for (const {entityName, entity} of syncRows) {
         if (entityName === 'branches' && !(entity.parentNoteId in treeCache.notes)) {
             missingNoteIds.push(entity.parentNoteId);
         }

src/public/app/services/zoom.js

@@ -9,9 +9,11 @@ class ZoomService extends Component {
     constructor() {
         super();
 
-        options.initializedPromise.then(() => {
-            this.setZoomFactor(options.getFloat('zoomFactor'));
-        });
+        if (utils.isElectron()) {
+            options.initializedPromise.then(() => {
+                this.setZoomFactor(options.getFloat('zoomFactor'));
+            });
+        }
     }
 
     setZoomFactor(zoomFactor) {

src/public/app/widgets/component.js

@@ -82,6 +82,10 @@ export default class Component {
         let release;
 
         try {
+            if (this.mutex.isLocked()) {
+                console.debug("Mutex locked for", this.constructor.name);
+            }
+
             release = await this.mutex.acquire();
 
             await fun.call(this, data);
@@ -93,4 +97,4 @@ export default class Component {
             }
         }
     }
-}
+}

src/public/app/widgets/note_detail.js

@@ -308,9 +308,10 @@ export default class NoteDetailWidget extends TabAwareWidget {
             return;
         }
 
-        await noteCreateService.createNote(note.noteId, {
+        // without await as this otherwise causes deadlock through component mutex
+        noteCreateService.createNote(note.noteId, {
             isProtected: note.isProtected,
             saveSelection: true
         });
     }
-}
+}