Fix: do not call refresh before embedded table was initialized.

frontend/src/app/components/wp-table/embedded/wp-embedded-base.component.ts

@@ -22,6 +22,8 @@ export abstract class WorkPackageEmbeddedBaseComponent implements OnInit, AfterV
   public configuration:WorkPackageTableConfiguration;
   public error:string|null = null;
 
+  private initialized:boolean = false;
+
   readonly QueryDm:QueryDmService = this.injector.get(QueryDmService);
   readonly tableState:TableState  = this.injector.get(TableState);
   readonly I18n:I18nService = this.injector.get(I18nService);
@@ -37,6 +39,7 @@ export abstract class WorkPackageEmbeddedBaseComponent implements OnInit, AfterV
     this.configuration = new WorkPackageTableConfiguration(this.providedConfiguration);
     // Set embedded status in configuration
     this.configuration.isEmbedded = true;
+    this.initialized = true;
   }
 
   ngAfterViewInit():void {
@@ -55,7 +58,9 @@ export abstract class WorkPackageEmbeddedBaseComponent implements OnInit, AfterV
   }
 
   ngOnChanges(changes:SimpleChanges) {
-    this.refresh();
+    if (this.initialized) {
+      this.refresh(this.initialLoadingIndicator);
+    }
   }
 
   get projectIdentifier() {
@@ -100,7 +105,7 @@ export abstract class WorkPackageEmbeddedBaseComponent implements OnInit, AfterV
   protected abstract loadQuery(visible:boolean):Promise<any>;
 
   protected get queryProjectScope() {
-    if (!(this.configuration && this.configuration.projectContext)) {
+    if (!this.configuration.projectContext) {
       return undefined;
     } else {
       return this.projectIdentifier;

frontend/src/app/components/wp-table/embedded/wp-embedded-table.component.ts

@@ -135,7 +135,7 @@ export class WorkPackageEmbeddedTableComponent extends WorkPackageEmbeddedBaseCo
 
     // HACK: Decrease loading time of queries when results are not needed.
     // We should allow the backend to disable results embedding instead.
-    if (!(this.configuration && this.configuration.tableVisible)) {
+    if (!this.configuration.tableVisible) {
       this.queryProps.pageSize = 1;
     }