$ git clone -n https://src.fedoraproject.org/rpms/x2gokdrive.git /var/lib/mock/f42-build-3338370-41426/root/chroot_tmpdir/scmroot/x2gokdrive
Cloning into '/var/lib/mock/f42-build-3338370-41426/root/chroot_tmpdir/scmroot/x2gokdrive'...
$ git fetch origin 7dcf5aaf8dadbb34911a641b6133f0acd595f7e0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/x2gokdrive
 * [new ref]         7dcf5aaf8dadbb34911a641b6133f0acd595f7e0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7dcf5aa Add BR font-util