$ git clone -n https://src.fedoraproject.org/rpms/fido-device-onboard.git /var/lib/mock/f39-build-2443084-61041/root/chroot_tmpdir/scmroot/fido-device-onboard
Cloning into '/var/lib/mock/f39-build-2443084-61041/root/chroot_tmpdir/scmroot/fido-device-onboard'...
$ git fetch origin f661f784ccf761783667c3a66364c8ef36b55ff9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fido-device-onboard
 * [new ref]         f661f784ccf761783667c3a66364c8ef36b55ff9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at f661f78 Upload soruce