$ git clone -n https://src.fedoraproject.org/rpms/haxe.git /var/lib/mock/f39-build-1542536-36519/root/chroot_tmpdir/scmroot/haxe
Cloning into '/var/lib/mock/f39-build-1542536-36519/root/chroot_tmpdir/scmroot/haxe'...
$ git fetch origin ba5f4dd6bbd608e03ef748a9e9f73b95ec5162d2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/haxe
 * [new ref]         ba5f4dd6bbd608e03ef748a9e9f73b95ec5162d2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ba5f4dd add haxe-ocaml5.patch