$ git clone -n https://src.fedoraproject.org/rpms/rust-tokio0.2.git /var/lib/mock/f40-build-2658280-66917/root/chroot_tmpdir/scmroot/rust-tokio0.2
Cloning into '/var/lib/mock/f40-build-2658280-66917/root/chroot_tmpdir/scmroot/rust-tokio0.2'...
$ git fetch origin d443d61378a58aad26a58ad961397e0dcec3c9d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tokio0.2
 * [new ref]         d443d61378a58aad26a58ad961397e0dcec3c9d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d443d61 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild