$ git clone -n https://src.fedoraproject.org/rpms/perl-DBD-MariaDB.git /var/lib/mock/f42-build-3437065-45433/root/chroot_tmpdir/scmroot/perl-DBD-MariaDB
Cloning into '/var/lib/mock/f42-build-3437065-45433/root/chroot_tmpdir/scmroot/perl-DBD-MariaDB'...
$ git fetch origin 7ce097c34de1c89a07b3d5d7fb40050c8aaa7190:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/perl-DBD-MariaDB
 * [new ref]         7ce097c34de1c89a07b3d5d7fb40050c8aaa7190 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7ce097c Update gating