$ git clone -n https://src.fedoraproject.org/rpms/kf6-bluez-qt.git /var/lib/mock/f42-build-862018-170551/root/chroot_tmpdir/scmroot/kf6-bluez-qt
Cloning into '/var/lib/mock/f42-build-862018-170551/root/chroot_tmpdir/scmroot/kf6-bluez-qt'...
$ git fetch origin f3e5f922d4b0772639246157c7d0d8378be05442:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-bluez-qt
 * [new ref]         f3e5f922d4b0772639246157c7d0d8378be05442 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f3e5f92 6.8.0