转让app后，更换证书提交app至appstore，会有警告：Potential Loss of Keychain Access. The previous version of software has an application-identifier value of 'A1B2C3D4E5.com.company.app' and the new version of software being submitted has an application-identifier of '5E4D3C2B1A.com.company.app'. This will result in a loss of keychain access.。
大体意思是说替换开发证书后会影响app对钥匙串的访问（会丢失之前钥匙串的数据）。
