mono_2.6.7-3~bpo50+2.dsc refers to mono_2.6.7.orig.tar.gz, but I can't find it in the queue or in the pool.
'dpkg-source -x' failed for mono_2.6.7-3~bpo50+2.dsc [return code: 2].
[dpkg-source output:] gpg: Signature made Sun Sep 12 22:31:37 2010 UTC using RSA key ID 3B244761
[dpkg-source output:] gpg: Can't check signature: public key not found
[dpkg-source output:] dpkg-source: failure: cannot fstat file ./mono_2.6.7.orig.tar.gz: No such file or directory
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