$ git clone -n https://src.fedoraproject.org/rpms/perl-Digest-MD5.git /var/lib/mock/f45-build-23131-596/root/chroot_tmpdir/scmroot/perl-Digest-MD5
Cloning into '/var/lib/mock/f45-build-23131-596/root/chroot_tmpdir/scmroot/perl-Digest-MD5'...
$ git fetch origin c0e53d07aa76182baf8472f0a72b78208ab8aa6e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-Digest-MD5
 * [new ref]         c0e53d07aa76182baf8472f0a72b78208ab8aa6e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c0e53d0 Increase release to favour standalone package