Fix caching issues with related studies. (#1970)

extensions/default/src/Panels/PanelStudyBrowser.jsx

@@ -187,7 +187,6 @@ PanelStudyBrowser.propTypes = {
     EVENTS: PropTypes.object.isRequired,
     activeDisplaySets: PropTypes.arrayOf(PropTypes.object).isRequired,
     getDisplaySetByUID: PropTypes.func.isRequired,
-    hasDisplaySetsForStudy: PropTypes.func.isRequired,
     subscribe: PropTypes.func.isRequired,
   }).isRequired,
   dataSource: PropTypes.shape({

extensions/default/src/Panels/requestDisplaySetCreationForStudy.js

@@ -4,7 +4,11 @@ function requestDisplaySetCreationForStudy(
   StudyInstanceUID
 ) {
   // TODO: is this already short-circuited by the map of Retrieve promises?
-  if (DisplaySetService.hasDisplaySetsForStudy(StudyInstanceUID)) {
+  if (
+    DisplaySetService.activeDisplaySets.some(
+      displaySet => displaySet.StudyInstanceUID === StudyInstanceUID
+    )
+  ) {
     return;
   }