$ git clone -n https://src.fedoraproject.org/rpms/rust-tokio0.1.git /var/lib/mock/f40-build-2644009-66494/root/chroot_tmpdir/scmroot/rust-tokio0.1
Cloning into '/var/lib/mock/f40-build-2644009-66494/root/chroot_tmpdir/scmroot/rust-tokio0.1'...
$ git fetch origin 47b79d1fa29a7082506e49b4a02f1c9784cbbb6e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-tokio0.1
 * [new ref]         47b79d1fa29a7082506e49b4a02f1c9784cbbb6e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 47b79d1 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild