$ git clone -n https://src.fedoraproject.org/rpms/jaaa.git /var/lib/mock/f40-build-2725102-73112/root/chroot_tmpdir/scmroot/jaaa
Cloning into '/var/lib/mock/f40-build-2725102-73112/root/chroot_tmpdir/scmroot/jaaa'...
$ git fetch origin dd9155c75d350cbcc530543b91dc2534f05db30e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jaaa
 * [new ref]         dd9155c75d350cbcc530543b91dc2534f05db30e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at dd9155c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild