Copy Clear value in batch update process for radio button field

[sunilpawar]

Overview

Unable to select clear value for all contact using copy to all functionality under batch update contact using profile.
Before

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If you profile contain radio button and same profile is used in contact batch update process.
Radio button field dispaly with clear button. If Admin do not want to update or touch these field , so you click clear button and click on copy to all. Here functionality does not work.

Update-multipl-contacts-clear-values.mp4

After

You can copy clear value to all rows.

[civibot]

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[colemanw]

Looks good. Thanks for the clearly-illustrated description @sunilpawar