diff --git a/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js b/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js
index 4d35fd64bf5f4..ec7da9719abf8 100644
--- a/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js
+++ b/addons/web_editor/static/src/js/editor/odoo-editor/src/OdooEditor.js
@@ -3899,9 +3899,13 @@ export class OdooEditor extends EventTarget {
             const ancestorsList = [commonAncestorElement, ...ancestors(commonAncestorElement, blockEl)];
             // Wrap rangeContent with clones of their ancestors to keep the styles.
             for (const ancestor of ancestorsList) {
-                const clone = ancestor.cloneNode();
-                clone.append(...rangeContent.childNodes);
-                rangeContent.appendChild(clone);
+                // Keep the formatting by keeping inline ancestors and paragraph
+                // related ones like headings etc.
+                if (!isBlock(ancestor) || paragraphRelatedElements.includes(ancestor.nodeName)) {
+                    const clone = ancestor.cloneNode();
+                    clone.append(...rangeContent.childNodes);
+                    rangeContent.appendChild(clone);
+                }
             }
         }
         const dataHtmlElement = document.createElement('data');
@@ -4928,6 +4932,12 @@ export class OdooEditor extends EventTarget {
             this._applyCommand("insert", text);
         } else if (odooEditorHtml) {
             const fragment = parseHTML(this.document, odooEditorHtml);
+            const selector = this.options.renderingClasses.map(c => `.${c}`).join(',');
+            if (selector) {
+                for (const element of fragment.querySelectorAll(selector)) {
+                    element.classList.remove(...this.options.renderingClasses);
+                }
+            }
             // Instantiate DOMPurify with the correct window.
             this.DOMPurify ??= DOMPurify(this.document.defaultView);
             this.DOMPurify.sanitize(fragment, { IN_PLACE: true });
diff --git a/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/copyPaste.test.js b/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/copyPaste.test.js
index 770f59c60d7a5..72fd4e1e1036a 100644
--- a/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/copyPaste.test.js
+++ b/addons/web_editor/static/src/js/editor/odoo-editor/test/spec/copyPaste.test.js
@@ -100,8 +100,8 @@ describe('Copy', () => {
                     const clipboardData = new DataTransfer();
                     triggerEvent(editor.editable, 'copy', { clipboardData });
                     window.chai.expect(clipboardData.getData('text/plain')).to.be.equal('First');
-                    window.chai.expect(clipboardData.getData('text/html')).to.be.equal('<li>First</li>');
-                    window.chai.expect(clipboardData.getData('text/odoo-editor')).to.be.equal('<li>First</li>');
+                    window.chai.expect(clipboardData.getData('text/html')).to.be.equal('First');
+                    window.chai.expect(clipboardData.getData('text/odoo-editor')).to.be.equal('First');
                 },
             });
             await testEditor(BasicEditor, {
@@ -110,8 +110,8 @@ describe('Copy', () => {
                     const clipboardData = new DataTransfer();
                     triggerEvent(editor.editable, 'copy', { clipboardData });
                     window.chai.expect(clipboardData.getData('text/plain')).to.be.equal('List');
-                    window.chai.expect(clipboardData.getData('text/html')).to.be.equal('<li>List</li>');
-                    window.chai.expect(clipboardData.getData('text/odoo-editor')).to.be.equal('<li>List</li>');
+                    window.chai.expect(clipboardData.getData('text/html')).to.be.equal('List');
+                    window.chai.expect(clipboardData.getData('text/odoo-editor')).to.be.equal('List');
                 },
             });
             await testEditor(BasicEditor, {
@@ -120,8 +120,8 @@ describe('Copy', () => {
                     const clipboardData = new DataTransfer();
                     triggerEvent(editor.editable, 'copy', { clipboardData });
                     window.chai.expect(clipboardData.getData('text/plain')).to.be.equal('First');
-                    window.chai.expect(clipboardData.getData('text/html')).to.be.equal('<li><span style="font-size: 48px;"><font style="color: rgb(255, 0, 0);">First</font></span></li>');
-                    window.chai.expect(clipboardData.getData('text/odoo-editor')).to.be.equal('<li><span style="font-size: 48px;"><font style="color: rgb(255, 0, 0);">First</font></span></li>');
+                    window.chai.expect(clipboardData.getData('text/html')).to.be.equal('<span style="font-size: 48px;"><font style="color: rgb(255, 0, 0);">First</font></span>');
+                    window.chai.expect(clipboardData.getData('text/odoo-editor')).to.be.equal('<span style="font-size: 48px;"><font style="color: rgb(255, 0, 0);">First</font></span>');
                 },
             });
         })