$ git clone -n https://src.fedoraproject.org/rpms/golang-github-cncf-xds.git /var/lib/mock/f40-build-2574751-62241/root/chroot_tmpdir/scmroot/golang-github-cncf-xds
Cloning into '/var/lib/mock/f40-build-2574751-62241/root/chroot_tmpdir/scmroot/golang-github-cncf-xds'...
$ git fetch origin b3a1d02409b3cc9e67f58b9e6dc98cab39b86a90:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-cncf-xds
 * [new ref]         b3a1d02409b3cc9e67f58b9e6dc98cab39b86a90 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b3a1d02 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild