$ git clone -n https://src.fedoraproject.org/rpms/kwayland.git /var/lib/mock/f42-build-3427039-45200/root/chroot_tmpdir/scmroot/kwayland
Cloning into '/var/lib/mock/f42-build-3427039-45200/root/chroot_tmpdir/scmroot/kwayland'...
$ git fetch origin 7622f4fe87bda2d9baf93076c239e2b7846cafc7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kwayland
 * [new ref]         7622f4fe87bda2d9baf93076c239e2b7846cafc7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7622f4f 6.3.3