$ git clone -n https://src.fedoraproject.org/rpms/rust-arboard.git /var/lib/mock/f40-build-2175685-51067/root/chroot_tmpdir/scmroot/rust-arboard
Cloning into '/var/lib/mock/f40-build-2175685-51067/root/chroot_tmpdir/scmroot/rust-arboard'...
$ git fetch origin 063cd589175df830275e8671f733248b71b9808b:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-arboard
 * [new ref]         063cd589175df830275e8671f733248b71b9808b -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 063cd58 Update to 3.3.0 (rhbz#2250743)