$buttonAttrs = [
'type' => 'submit',
'class' => 'crm-form-submit',
+ 'value' => 1,
];
$this->addElement('xbutton', $this->getButtonName('refresh'), ts('Search'), $buttonAttrs);
$this->addElement('xbutton', $this->getButtonName('cancel'), ts('Cancel'), $buttonAttrs);