$ git clone -n https://src.fedoraproject.org/rpms/kf6-kpeople.git /var/lib/mock/f42-build-side-1-3573587-46768/root/chroot_tmpdir/scmroot/kf6-kpeople
Cloning into '/var/lib/mock/f42-build-side-1-3573587-46768/root/chroot_tmpdir/scmroot/kf6-kpeople'...
$ git fetch origin 7a257eb932b2af4c31ff59d5a656660bc3e00596:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kpeople
 * [new ref]         7a257eb932b2af4c31ff59d5a656660bc3e00596 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7a257eb 6.15 and plasma 3.4 compatibility rebuild