$ git clone -n https://src.fedoraproject.org/rpms/NLopt.git /var/lib/mock/f41-build-850197-165160/root/chroot_tmpdir/scmroot/NLopt
Cloning into '/var/lib/mock/f41-build-850197-165160/root/chroot_tmpdir/scmroot/NLopt'...
$ git fetch origin d17450e4d60128df12d2a8597126fbed2e5c03c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/NLopt
 * [new ref]         d17450e4d60128df12d2a8597126fbed2e5c03c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d17450e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild