$ git clone -n https://src.fedoraproject.org/rpms/rust-nu-std.git /var/lib/mock/f41-build-side-1-3007600-36769/root/chroot_tmpdir/scmroot/rust-nu-std
Cloning into '/var/lib/mock/f41-build-side-1-3007600-36769/root/chroot_tmpdir/scmroot/rust-nu-std'...
$ git fetch origin 7515a30eff51d79620687eaa3847c8f41b1ec453:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-nu-std
 * [new ref]         7515a30eff51d79620687eaa3847c8f41b1ec453 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7515a30 Update to version 0.96.1; Fixes RHBZ#2272735