$ git clone -n https://src.fedoraproject.org/rpms/xalan-c.git /var/lib/mock/f39-build-1465850-33621/root/chroot_tmpdir/scmroot/xalan-c
Cloning into '/var/lib/mock/f39-build-1465850-33621/root/chroot_tmpdir/scmroot/xalan-c'...
$ git fetch origin 1ce3c9018f9928b924934c16008bcca4bc33e555:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/xalan-c
 * [new ref]         1ce3c9018f9928b924934c16008bcca4bc33e555 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1ce3c90 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild