diff --git a/superset-frontend/cypress-base/cypress/integration/dashboard/save.test.js b/superset-frontend/cypress-base/cypress/integration/dashboard/save.test.js
index 14e0ce314..8064f81fa 100644
--- a/superset-frontend/cypress-base/cypress/integration/dashboard/save.test.js
+++ b/superset-frontend/cypress-base/cypress/integration/dashboard/save.test.js
@@ -74,7 +74,9 @@ describe('Dashboard save action', () => {
       .trigger('mouseenter')
       .click();
 
-    cy.get('[data-test="grid-container"]').find('.treemap').should('not.exist');
+    cy.get('[data-test="grid-container"]')
+      .find('.box_plot')
+      .should('not.exist');
 
     cy.intercept('PUT', '/api/v1/dashboard/**').as('putDashboardRequest');
     cy.get('[data-test="dashboard-header"]')
@@ -88,9 +90,9 @@ describe('Dashboard save action', () => {
       .find('[aria-label="edit-alt"]')
       .click();
 
-    // deleted treemap should still not exist
+    // deleted boxplot should still not exist
     cy.get('[data-test="grid-container"]')
-      .find('.treemap', { timeout: 20000 })
+      .find('.box_plot', { timeout: 20000 })
       .should('not.exist');
   });
 
diff --git a/superset-frontend/src/dashboard/actions/dashboardState.js b/superset-frontend/src/dashboard/actions/dashboardState.js
index 07799c2e9..60491025d 100644
--- a/superset-frontend/src/dashboard/actions/dashboardState.js
+++ b/superset-frontend/src/dashboard/actions/dashboardState.js
@@ -347,7 +347,7 @@ export function saveDashboardRequest(data, id, saveType) {
         .catch(response => onError(response));
     }
     // changing the data as the endpoint requires
-    const copyData = cleanedData;
+    const copyData = { ...cleanedData };
     if (copyData.metadata) {
       delete copyData.metadata;
     }