$ git clone -n https://src.fedoraproject.org/rpms/ksirk.git /var/lib/mock/f42-build-3367082-45050/root/chroot_tmpdir/scmroot/ksirk
Cloning into '/var/lib/mock/f42-build-3367082-45050/root/chroot_tmpdir/scmroot/ksirk'...
$ git fetch origin 61bfd8e856d27da75c8e41aca4a9c472847f4447:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ksirk
 * [new ref]         61bfd8e856d27da75c8e41aca4a9c472847f4447 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 61bfd8e 24.12.3