fix(thumbnail): Avoid multiple promise creations for thumbnails (#3756)

platform/app/cypress/integration/measurement-tracking/OHIFCornerstoneToolbar.spec.js

@@ -442,7 +442,18 @@ describe('OHIF Cornerstone Toolbar', () => {
     cy.waitDicomImage();
 
     // Now navigate down once and check that the left hand pane navigated
-    cy.get('body').type('{downarrow}');
+    cy.get('body').focus().type('{downarrow}');
+
+    // The following lines assist in troubleshooting when/if this test were to fail.
+    cy.get('[data-cy="viewport-pane"]')
+      .eq(0)
+      .find('[data-cy="viewport-overlay-top-right"]')
+      .should('contains.text', 'I:2 (2/20)');
+    cy.get('[data-cy="viewport-pane"]')
+      .eq(1)
+      .find('[data-cy="viewport-overlay-top-right"]')
+      .should('contains.text', 'I:2 (2/20)');
+
     cy.get('body').type('{leftarrow}');
     cy.setLayout(1, 1);
     cy.get('@viewportInfoTopRight').should('contains.text', 'I:2 (2/20)');

platform/app/cypress/support/commands.js

@@ -181,7 +181,7 @@ Cypress.Commands.add('expectMinimumThumbnails', (seriesToWait = 1) => {
 //Command to wait DICOM image to load into the viewport
 Cypress.Commands.add('waitDicomImage', (mode = '/basic-test', timeout = 50000) => {
   cy.window()
-    .its('cornerstone')
+    .its('cornerstone', { timeout: 30000 })
     .should($cornerstone => {
       const enabled = $cornerstone.getEnabledElements();
       if (enabled?.length) {

platform/core/src/services/DicomMetadataStore/DicomMetadataStore.ts

@@ -187,6 +187,10 @@ const BaseImplementation = {
     });
   },
   addSeriesMetadata(seriesSummaryMetadata, madeInClient = false) {
+    if (!seriesSummaryMetadata || !seriesSummaryMetadata.length || !seriesSummaryMetadata[0]) {
+      return;
+    }
+
     const { StudyInstanceUID } = seriesSummaryMetadata[0];
     let study = _getStudy(StudyInstanceUID);
     if (!study) {