Because no solution to this problem was forthcoming, and because many packages were being released that depended on libc6-2.3.2 and later, I opted for a different temporary fix that seem to provide a work around.
I downgraded all the samba packages to stable and put a hold on them. Then I released the hold on the libc6 at version 2.3.1. Then performed a normal upgrade of Debian/Sid with all packages depending on libc6-2.3.2 getting updated. This seems to work fine for now.
I am assuming that samba will get a new upstream version soon, and get built against libc6-2.3.2 and get around this problem.
I recommend removing the bug report for libc6 and keeping the bug report for samba until it works with libc6-2.3.2.
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James D. Freels, Ph.D.
jdfreels@comcast.net
freelsjd@ornl.gov