修复用户角色消失问题

‘liusuyi’

2023-07-28 7d4550556a37b985f49172b91df6780c9f2edc08

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export function isPromise(maybePromise) {
    return (!!maybePromise &&
        !!maybePromise.then &&
        typeof maybePromise.then === 'function');
}