$ git clone -n https://src.fedoraproject.org/rpms/rust-add-determinism.git /var/lib/mock/f41-build-812373-147817/root/chroot_tmpdir/scmroot/rust-add-determinism
Cloning into '/var/lib/mock/f41-build-812373-147817/root/chroot_tmpdir/scmroot/rust-add-determinism'...
$ git fetch origin 3be1b976b9c9591003808e46f89f9ea461c29cd1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-add-determinism
 * [new ref]         3be1b976b9c9591003808e46f89f9ea461c29cd1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3be1b97 Version 0.3.3