$ git clone -n https://src.fedoraproject.org/rpms/perl-AI-DecisionTree.git /var/lib/mock/f45-build-21542-586/root/chroot_tmpdir/scmroot/perl-AI-DecisionTree
Cloning into '/var/lib/mock/f45-build-21542-586/root/chroot_tmpdir/scmroot/perl-AI-DecisionTree'...
$ git fetch origin 792dd39aa6720e8fbf011988dcff2915f8894464:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-AI-DecisionTree
 * [new ref]         792dd39aa6720e8fbf011988dcff2915f8894464 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 792dd39 Perl 5.44 rebuild