$ git clone -n https://src.fedoraproject.org/rpms/rust-pipe-trait.git /var/lib/mock/f38-build-side-43-rust-devel-1411930-31436/root/chroot_tmpdir/scmroot/rust-pipe-trait
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1411930-31436/root/chroot_tmpdir/scmroot/rust-pipe-trait'...
$ git fetch origin 36abea29c0331a599bfbcc2229c04d416e5806be:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-pipe-trait
 * [new ref]         36abea29c0331a599bfbcc2229c04d416e5806be -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 36abea2 Initial Fedora package