$ git clone -n https://src.fedoraproject.org/rpms/krfb.git /var/lib/mock/f42-build-side-1-3582486-46885/root/chroot_tmpdir/scmroot/krfb
Cloning into '/var/lib/mock/f42-build-side-1-3582486-46885/root/chroot_tmpdir/scmroot/krfb'...
$ git fetch origin 9dec40116dc5d1906e2d2f8ac778247e6204bbf6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/krfb
 * [new ref]         9dec40116dc5d1906e2d2f8ac778247e6204bbf6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9dec401 25.04.3