Arcs with multiple mods not setting parent correctly

[Brachi]

Game

Resident Evil 5

Example game file names

Resident Evil 5/nativePC_MT/Image/Archive/uPl03WeskerCos1.arc

Blender version

2.77

Albam version

0.0.1

Observed behavior

The example file that has 2 mod files, and the meshes of one of them have no parents.
E.g.:

--uPl03WeskerCos1.arc
      --md0058.mod   --> No children, meshes should go here
      --pl1500.mod      --> has children, works ok
--mesh_from_md0058_1  --> this should go as a child of md0058.mod
--mesh_from_md0058_2
-- ...

Expected behavior

All meshes have a parent

Steps to reproduce

Import the example file