support for number as string values

templates/select.php

@@ -22,7 +22,7 @@
 
 	<?php foreach ( $field->get_possible_values() as $possible_value => $label ): ?>
 		<option
-			<?php if ( $possible_value === $value ): ?>selected="selected"<?php endif; ?>
+			<?php if ( $possible_value === $value || (is_numeric($possible_value) && is_numeric($value) && (int) $possible_value === (int) $value )): ?>selected="selected"<?php endif; ?>
 			value="<?php echo esc_attr( $possible_value ); ?>"
 		><?php echo esc_html( $label ); ?></option>
 	<?php endforeach; ?>