$ git clone -n https://src.fedoraproject.org/rpms/coolreader.git /var/lib/mock/f39-build-1457332-32980/root/chroot_tmpdir/scmroot/coolreader
Cloning into '/var/lib/mock/f39-build-1457332-32980/root/chroot_tmpdir/scmroot/coolreader'...
$ git fetch origin 4d41a24cd64295f096076b759f9a26303e35d138:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/coolreader
 * [new ref]         4d41a24cd64295f096076b759f9a26303e35d138 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4d41a24 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild