Additional transform isn't applied as expected

[nakata0705]

Thank you for this great tool. Let me report one issue I encountered.

Recently I installed mmd_tool commit f5591f3 (head of master as of 11/14/2015) to vanilla blender 2.76 and imported Tda式初音ミク・アペンド_Ver1.00.pmx. Then I realized its eyes moves unexpectedly when I change the angle of its head. But it works as expected with version 0.4.5 (stable).

I checked commit by commit and I found this issue doesn't happen with commit 58bd563(MMDモデル非選択にエラーが出力される不具合を修正) but happens from 7e3aa34(回転/移動付与のConstraint生成処理をpmxインポート処理から分離).

As far as I checked, additional rotation constraints related function seems to be called as expected at the end of import process. But I couldn't identify the exact reason why I'm seeing this. Thanks in advance for your support!

f5591f3

7e3aa34

58bd563