[BUG]POST /api/v1/login/access-token调用报错

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v1.7.0版本使用API接口POST /api/v1/login/access-token调用报错，grant_type=password，username和password默认值，网页登录没问题，API报错
500 error
从docker logs能看出错误时binascii.a2b_base64(s, strict_mode=validate)时出错，binascii.error:invalid base64-encoded string: number of data characters(5) cannot be 1 more than a multiple of 4