$ git clone -n https://src.fedoraproject.org/rpms/airrac.git /var/lib/mock/f39-build-1535902-36252/root/chroot_tmpdir/scmroot/airrac
Cloning into '/var/lib/mock/f39-build-1535902-36252/root/chroot_tmpdir/scmroot/airrac'...
$ git fetch origin 98cdd7bd74f276ce3e9c42340d0645c2a35a73f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/airrac
 * [new ref]         98cdd7bd74f276ce3e9c42340d0645c2a35a73f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 98cdd7b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild