$ git clone -n https://src.fedoraproject.org/rpms/rust-rd-agent.git /var/lib/mock/f40-build-739452-109000/root/chroot_tmpdir/scmroot/rust-rd-agent
Cloning into '/var/lib/mock/f40-build-739452-109000/root/chroot_tmpdir/scmroot/rust-rd-agent'...
$ git fetch origin 097546cd95f1d703c1c5da59c3dea6842d0e0611:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rd-agent
 * [new ref]         097546cd95f1d703c1c5da59c3dea6842d0e0611 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 097546c Regenerate with rust2rpm v24