diff --git a/addons/web_editor/static/src/js/editor/odoo-editor/src/utils/utils.js b/addons/web_editor/static/src/js/editor/odoo-editor/src/utils/utils.js
index c87c6c51086..7df91386465 100644
--- a/addons/web_editor/static/src/js/editor/odoo-editor/src/utils/utils.js
+++ b/addons/web_editor/static/src/js/editor/odoo-editor/src/utils/utils.js
@@ -669,7 +669,8 @@ export function getTraversedNodes(editable, range = getDeepRange(editable)) {
             const selectedTable = closestElement(node, '.o_selected_table');
             if (selectedTable) {
                 for (const selectedTd of selectedTable.querySelectorAll('.o_selected_td')) {
-                    traversedNodes.add(selectedTd, ...descendants(selectedTd));
+                    traversedNodes.add(selectedTd);
+                    descendants(selectedTd).forEach(descendant => traversedNodes.add(descendant));
                 }
             } else {
                 traversedNodes.add(node);
@@ -692,7 +693,7 @@ export function getSelectedNodes(editable) {
         return [];
     }
     const range = sel.getRangeAt(0);
-    return getTraversedNodes(editable).flatMap(
+    return [...new Set(getTraversedNodes(editable).flatMap(
         node => {
             const td = closestElement(node, '.o_selected_td');
             if (td) {
@@ -703,7 +704,7 @@ export function getSelectedNodes(editable) {
                 return [];
             }
         },
-    );
+    ))];
 }
 
 /**