$ git clone -n https://src.fedoraproject.org/rpms/pcs.git /var/lib/mock/f38-build-side-42-init-devel-816323-28334/root/chroot_tmpdir/scmroot/pcs
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-816323-28334/root/chroot_tmpdir/scmroot/pcs'...
$ git fetch origin 2287b8ba7d40a9de68178181b5efd4964615d88e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/pcs
 * [new ref]         2287b8ba7d40a9de68178181b5efd4964615d88e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2287b8b Resolves: rhbz#2166266