Bug#805310: libsasl2-modules: Annoying message "DIGEST-MD5 common mech free" with slapd

[Thomas D]

Dear Maintainer,

I can confirm that this is still a bug in Debian 9.5.
I get this message all the time on my subversion server.

Any advice on how to get rid of this message for now?
And what plans are there to fix this in future releases?

BR
Thomas