$ git clone -n https://src.fedoraproject.org/rpms/kwayland-integration.git /var/lib/mock/f42-build-side-1-3569441-46747/root/chroot_tmpdir/scmroot/kwayland-integration
Cloning into '/var/lib/mock/f42-build-side-1-3569441-46747/root/chroot_tmpdir/scmroot/kwayland-integration'...
$ git fetch origin 26f8d59e4e24a88880bc54d18ca1ef9d411fd8b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kwayland-integration
 * [new ref]         26f8d59e4e24a88880bc54d18ca1ef9d411fd8b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 26f8d59 6.4.0