$ git clone -n https://src.fedoraproject.org/rpms/libfishsound.git /var/lib/mock/f45-build-16167-483/root/chroot_tmpdir/scmroot/libfishsound
Cloning into '/var/lib/mock/f45-build-16167-483/root/chroot_tmpdir/scmroot/libfishsound'...
$ git fetch origin e4c4e90b68fd56caeb89a80cceefa190db99a852:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libfishsound
 * [new ref]         e4c4e90b68fd56caeb89a80cceefa190db99a852 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e4c4e90 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild