$ git clone -n https://src.fedoraproject.org/rpms/howl.git /var/lib/mock/f38-build-side-42-init-devel-1283679-30672/root/chroot_tmpdir/scmroot/howl
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1283679-30672/root/chroot_tmpdir/scmroot/howl'...
$ git fetch origin 70ec197067939a5d8d232e236966196bca7f09d5:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/howl
 * [new ref]         70ec197067939a5d8d232e236966196bca7f09d5 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 70ec197 ExcludeArch i686 for https://fedoraproject.org/wiki/Changes/EncourageI686LeafRemoval