$ git clone -n https://src.fedoraproject.org/rpms/brainfuck.git /var/lib/mock/f38-build-side-42-init-devel-879292-28483/root/chroot_tmpdir/scmroot/brainfuck
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-879292-28483/root/chroot_tmpdir/scmroot/brainfuck'...
$ git fetch origin 169499505fc7913c3215d43e959ab95ea660a4f5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/brainfuck
 * [new ref]         169499505fc7913c3215d43e959ab95ea660a4f5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1694995 bump release