$ git clone -n https://src.fedoraproject.org/rpms/rust-async-process.git /var/lib/mock/f42-build-side-1-3536436-46558/root/chroot_tmpdir/scmroot/rust-async-process
Cloning into '/var/lib/mock/f42-build-side-1-3536436-46558/root/chroot_tmpdir/scmroot/rust-async-process'...
$ git fetch origin 955c63f6487d08bcc4794139ea5aad7810776ba8:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-async-process
 * [new ref]         955c63f6487d08bcc4794139ea5aad7810776ba8 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 955c63f Update to version 2.3.1; Fixes RHBZ#2368674