$ git clone -n https://src.fedoraproject.org/rpms/flow-tools.git /var/lib/mock/f40-build-1996580-44033/root/chroot_tmpdir/scmroot/flow-tools
Cloning into '/var/lib/mock/f40-build-1996580-44033/root/chroot_tmpdir/scmroot/flow-tools'...
$ git fetch origin 6397f12daae746adb19e0baf5533f754cb026c3d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/flow-tools
 * [new ref]         6397f12daae746adb19e0baf5533f754cb026c3d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6397f12 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild