$ git clone -n https://src.fedoraproject.org/rpms/golang-github-vividcortex-ewma.git /var/lib/mock/f40-build-2690715-68120/root/chroot_tmpdir/scmroot/golang-github-vividcortex-ewma
Cloning into '/var/lib/mock/f40-build-2690715-68120/root/chroot_tmpdir/scmroot/golang-github-vividcortex-ewma'...
$ git fetch origin c78713e7c0c5d7b8f202a86c76c14fda277a19fe:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/golang-github-vividcortex-ewma
 * [new ref]         c78713e7c0c5d7b8f202a86c76c14fda277a19fe -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c78713e Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild