$ git clone -n https://src.fedoraproject.org/rpms/haxe.git /var/lib/mock/f38-build-side-42-init-devel-799371-28089/root/chroot_tmpdir/scmroot/haxe
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-799371-28089/root/chroot_tmpdir/scmroot/haxe'...
$ git fetch origin c2b2566f51cf69ec56e56d56564edbf28cbe3440:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/haxe
 * [new ref]         c2b2566f51cf69ec56e56d56564edbf28cbe3440 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c2b2566 Rebuild OCaml packages for F38