Re IDC #2765: fix loading of segmentations at first startup (#2768)

Re IDC #2761: fix loading of segmentations

update dcmjs to 0.19.9

platform/viewer/src/connectedComponents/ViewerMain.js

@@ -154,12 +154,25 @@ class ViewerMain extends Component {
           });
         };
 
-        const { referencedDisplaySet } = displaySet.getSourceDisplaySet(
+        const {
+          referencedDisplaySet,
+          activatedLabelmapPromise,
+        } = displaySet.getSourceDisplaySet(
           this.props.studies,
           true,
           onDisplaySetLoadFailureHandler
         );
         displaySet = referencedDisplaySet;
+
+        activatedLabelmapPromise.then(activatedLabelmapIndex => {
+          const selectionFired = new CustomEvent(
+            'extensiondicomsegmentationsegselected',
+            {
+              detail: { activatedLabelmapIndex: activatedLabelmapIndex },
+            }
+          );
+          document.dispatchEvent(selectionFired);
+        });
       } else {
         displaySet = displaySet.getSourceDisplaySet(this.props.studies);
       }