$ git clone -n https://src.fedoraproject.org/rpms/xsetroot.git /var/lib/mock/f38-build-715966-95741/root/chroot_tmpdir/scmroot/xsetroot
Cloning into '/var/lib/mock/f38-build-715966-95741/root/chroot_tmpdir/scmroot/xsetroot'...
$ git fetch origin 0f973e2aaaff1999503194fe6083215fe41bc0f6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xsetroot
 * [new ref]         0f973e2aaaff1999503194fe6083215fe41bc0f6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0f973e2 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild