$ git clone -n https://src.fedoraproject.org/rpms/ksirk.git /var/lib/mock/f40-build-2140420-50849/root/chroot_tmpdir/scmroot/ksirk
Cloning into '/var/lib/mock/f40-build-2140420-50849/root/chroot_tmpdir/scmroot/ksirk'...
$ git fetch origin bdfc1f292f27558055cda4ee510b43a9424be560:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ksirk
 * [new ref]         bdfc1f292f27558055cda4ee510b43a9424be560 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at bdfc1f2 24.01.85