$ git clone -n https://src.fedoraproject.org/rpms/rust-nu-cmd-base.git /var/lib/mock/f41-build-side-1-3149604-40516/root/chroot_tmpdir/scmroot/rust-nu-cmd-base
Cloning into '/var/lib/mock/f41-build-side-1-3149604-40516/root/chroot_tmpdir/scmroot/rust-nu-cmd-base'...
$ git fetch origin d89f5578a567484930697e55103d8390b6d1075b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-nu-cmd-base
 * [new ref]         d89f5578a567484930697e55103d8390b6d1075b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d89f557 Update to version 0.99.1