Dataset and dmp overview fix.

* Fix edit issue when multiple users have ownership of the same dmp/dataset.

(cherry picked from commit fd9d35aad3)

dmp-frontend/src/app/ui/dataset/overview/dataset-overview.component.ts

@@ -164,7 +164,7 @@ export class DatasetOverviewComponent extends BaseComponent implements OnInit {
 	setIsUserOwner() {
 		if (this.dataset) {
 			const principal: Principal = this.authentication.current();
-			if (principal) this.isUserOwner = principal.id === this.dataset.users.find(x => x.role === Role.Owner).id;
+			if (principal) this.isUserOwner = !!this.dataset.users.find(x => (x.role === Role.Owner) && (principal.id === x.id));
 		}
 	}
 

dmp-frontend/src/app/ui/dmp/overview/dmp-overview.component.ts

@@ -167,7 +167,7 @@ export class DmpOverviewComponent extends BaseComponent implements OnInit {
 	setIsUserOwner() {
 		if (this.dmp) {
 			const principal: Principal = this.authentication.current();
-			if (principal) this.isUserOwner = principal.id === this.dmp.users.find(x => x.role === Role.Owner).id;
+			if (principal) this.isUserOwner = !!this.dmp.users.find(x => (x.role === Role.Owner) && (principal.id === x.id));
 		}
 	}