Unable to clear email text field on login form

I have two automated native mobile suites for iOS and Android. Recently, the webview loginform was implemented for the apps and I have adjusted my tests to work with it.

The first login on the webview form works well. However, if I try clear the username field and send keys again, the email is pre-filled and there is no way to clear it.
When using Appium’s inspector, even if the email field is populated, the element does NOT have any value attribute. Therefore, clearValue() or .setValue(’’) doesn’t work, as it’s clearing a field which is supposed to be empty.

My issue is very similar to this thread, which didn’t receive any reply:

I request help, as this is breaking my automation suites.
Thank you