$ git clone -n https://src.fedoraproject.org/rpms/kwin.git /var/lib/mock/f40-build-2096556-50409/root/chroot_tmpdir/scmroot/kwin
Cloning into '/var/lib/mock/f40-build-2096556-50409/root/chroot_tmpdir/scmroot/kwin'...
$ git fetch origin 9fd56ab5848b729b80f2070f49249ef024ed9d0e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kwin
 * [new ref]         9fd56ab5848b729b80f2070f49249ef024ed9d0e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 9fd56ab Add BR for xwayland