Line is erased after typing on multiline text field

• Type: Regression Bug
• Status: Closed
• Resolution: Fixed
• Affects Version/s: 7.2.X
• Fix Version/s: 7.2.10 DXP FP6, 7.2.X
• Component/s: Forms
• Labels:
  • 7.2-blocker
  • QA-FP
  • ee-ts
  • liferay-fixpack-dxp-6-7210
• Fix Priority: 4
• Sprint: Forms_7.3_24
• Git Pull Request: https://github.com/liferay/liferay-portal-ee/pull/19427

Steps to reproduce:

1. Using IE11, go to Site's Content & Data > Forms;
2. Click to create a new form containing a required multiple lines text field;
3. Publish it and go to the form's URL;
4. Click inside the text field and then outside to fire the required field validation;
5. Now, click inside the field again and start typing some characters, then stop.

Actual behavior:
The content of the field is erased.

Expected behavior:
The field should contain all that was typed in and the validation message should disappear.