$ git clone -n https://src.fedoraproject.org/rpms/xfce4-vala.git /var/lib/mock/f39-build-1559860-37326/root/chroot_tmpdir/scmroot/xfce4-vala
Cloning into '/var/lib/mock/f39-build-1559860-37326/root/chroot_tmpdir/scmroot/xfce4-vala'...
$ git fetch origin e1e2a485ef7ebe50f9b4ee5829f7d914014def1c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xfce4-vala
 * [new ref]         e1e2a485ef7ebe50f9b4ee5829f7d914014def1c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1e2a48 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild