Added sync freezing while editing symbols

src/app/services/sync.service.ts

@@ -110,7 +110,7 @@ export class SyncService {
         }).snapshotChanges(), this.freeze)
             .pipe(map(data => {
                 let oldMap = this.mapData.value;
-                if(data[2]) return oldMap;
+                if(data[2]) return;
                 let newMap = data[0] || {};
                 let mergedMap = this.mergeMaps(newMap, oldMap);
 
@@ -121,6 +121,7 @@ export class SyncService {
 
                 return mergedMap;
             })).subscribe((mapData: MapData) => {
+                if(!mapData) return;
                 this.mapData.next(mapData);
                 this.status.next(null);
                 if(this.saveInterval) clearInterval(this.saveInterval);

src/app/views/map/map.component.ts

@@ -110,7 +110,9 @@ export class MapComponent implements OnDestroy, OnInit {
         this.map.click.pipe(filter(e => !!e)).subscribe(e => {
             if(this.sub == null && e.symbol) {
                 if(e.symbol.noClick) return;
+                this.syncService.freeze.next(true);
                 this.sub = this.bottomSheet.open(EditSymbolComponent, {data: e, disableClose: true, hasBackdrop: false}).afterDismissed().pipe(finalize(() => this.sub = null)).subscribe(symbol => {
+                    this.syncService.freeze.next(false);
                     this.syncService.delete(e.symbol);
                     if(e.item instanceof L.Circle) {
                         this.syncService.addCircle(symbol);