$ git clone -n https://src.fedoraproject.org/rpms/rust-async-process.git /var/lib/mock/f40-build-2257916-54327/root/chroot_tmpdir/scmroot/rust-async-process
Cloning into '/var/lib/mock/f40-build-2257916-54327/root/chroot_tmpdir/scmroot/rust-async-process'...
$ git fetch origin 4a315e63d3b6bac871c6e4feb8ffa8e4971259c7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-async-process
 * [new ref]         4a315e63d3b6bac871c6e4feb8ffa8e4971259c7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4a315e6 Update to version 2.0.1; Fixes RHBZ#2240641