modify code so form won’t reset after sending

Good evening,

In the scripts.js file

wp-content\plugins\contact-form-7\includes\js\scripts.js

Can I change this code section within:

if ( 'mail_sent' == data.status ) {
	$form.each( function() {
		this.reset();
	} );

So that my form fields do not clear after the form submits?

Is this safe and what should I change to the code?

thanks,