unexpected userPassword content

Hello,

I am writing a MD5-password to openldap:

cleartext: 654321
md5: c33367701511b4f6020ec61ded352059
hex2b64: wzNncBURtPYCDsYd7TUgWQ==

So in my call, I am setting

userPassword={MD5}wzNncBURtPYCDsYd7TUgWQ==

But when I retrieve the userPassword content later, I get this value:

e01ENX13ek5uY0JVUnRQWUNEc1lkN1RVZ1dRPT0=

What has openldap done to it? What do I have to do with the cleartext 
password to get the same value?

Kind regards
Marten