Unexpected characters in layer names

[cezarykluczynski]

After creating a simple PSD with Gimp, I got layers names with a lot of additional information that doesn't make sense. For example (as can be seen in a attached file), for a layer named "LayerUnchanged", I got this legacy_name:

hanged8BIMluni \x0ELayerUnchanged\x01\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02\x02

File in question:

https://mega.co.nz/#!H1lVVa4K!eWrYo2mXNeCkF9-Ca3lQakleILL9fXFeq7WHvBpGifM

And it seems to get worse every time layer name is changed and then file is saved.

How do I filter those characters out?

What's "BIMluni" (it's ofter part of those distorted layer names)? It has something to do with MacRoman I guess.

Maybe you could filter those additional characters out before getter returns layer name?

It gets even worse with some old PSD's I have. Like layer name history get's saved in layer name, if that makes sense (I can't share those through, that's my company property). And those were edited with PS3 or PS4 for sure, no Gimp involved.

I'm using PSD.rb 3.2.4 (but that port of PSD.rb, PSD.js, gave me similiar results).