in js/details.js [818:835]
function invokeClearNI() {
ChangeList = getCheckedBugIds();
if (!ChangeList.length)
return;
document.getElementById('prompt-confirm-bugcount').textContent = ChangeList.length;
let dlg = document.getElementById("prompt-confirm");
dlg.returnValue = "cancel";
dlg.addEventListener('close', (event) => {
if (dlg.returnValue == 'confirm') {
queueChanges('clear-flag', null);
} else {
// Update buttons after cancel
updateButtonsState();
}
}, { once: true });
dlg.show();
}