$ git clone -n https://src.fedoraproject.org/rpms/koji-tool.git /var/lib/mock/f40-build-803075-144172/root/chroot_tmpdir/scmroot/koji-tool
Cloning into '/var/lib/mock/f40-build-803075-144172/root/chroot_tmpdir/scmroot/koji-tool'...
$ git fetch origin 8b7da3da78f7dcfbc20636c2f1d415eca8801be9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/koji-tool
 * [new ref]         8b7da3da78f7dcfbc20636c2f1d415eca8801be9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 8b7da3d Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild