Bug 363501

A couple of weeks ago I upgraded my system from KDE4 to Plasma 5 and KDE Apps 15.
Today I noticed that I'm missing quite a lot of my files in the collection and Amarok doesn't seem to be able to recognize them any longer. I could play them before the upgrade as an entire artist has disappeared and I didn't do any upgrade then.

* If I rename an album "Då som nu för alltid" to "Test" it finds all tracks that doesn't include any åäö.
* If I manually add the tracks to amarok I can play them.
* Tried to move files from NFS to a local collection. No difference.
* Removed .kde4/share/apps/amarok and .kde/share/config/amarok*. No difference.
* I'm using phonon-gstreamer, tried with phonon-vlc. No difference
* Filenames are in UTF-8 (I had this problem 3–4 years ago, but fixed it after converting to UTF-8).

I upgraded quite a lot of packages back then, so it could be something else, but I'm not sure what other packages except kde packages could've changed this behavior.

Reproducible: Always

Steps to Reproduce:
1. Add local folder with international characters (in UTF-8)
2. Press Update Collection

Actual Results:  
Files with international isn't shown in collection

Expected Results:  
All files should be shown

Gentoo
kernel 3.17.8-gentoo-r1
Upgraded from KDE 4.14