$ git clone -n https://src.fedoraproject.org/rpms/pykka.git /var/lib/mock/f38-build-side-42-init-devel-637958-26384/root/chroot_tmpdir/scmroot/pykka
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-637958-26384/root/chroot_tmpdir/scmroot/pykka'...
$ git fetch origin 8b701e07240d57e7deac9a96d43a44883f49e30a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pykka
 * [new ref]         8b701e07240d57e7deac9a96d43a44883f49e30a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b701e0 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild