$ git clone -n https://src.fedoraproject.org/rpms/chromaprint.git /var/lib/mock/f45-build-3970-329/root/chroot_tmpdir/scmroot/chromaprint
Cloning into '/var/lib/mock/f45-build-3970-329/root/chroot_tmpdir/scmroot/chromaprint'...
$ git fetch origin 488d9f818e8870548b110a8e7e947e88e4b0aa1f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/chromaprint
 * [new ref]         488d9f818e8870548b110a8e7e947e88e4b0aa1f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 488d9f8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild