$ git clone -n https://src.fedoraproject.org/rpms/kasts.git /var/lib/mock/f40-build-752666-116816/root/chroot_tmpdir/scmroot/kasts
Cloning into '/var/lib/mock/f40-build-752666-116816/root/chroot_tmpdir/scmroot/kasts'...
$ git fetch origin eb837c7996583a11beca591c7ea09f6274e16e6e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kasts
 * [new ref]         eb837c7996583a11beca591c7ea09f6274e16e6e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at eb837c7 24.01.75