Wrong sorting of non-English characters (iTunes 11.2)

Since version 11.2 of iTunes, there is a problem with sorting of names with non-English characters (such as ž, š, č, ř or other in Czech). It seems that iTunes completely omits these characters when sorting. As an example, I have Čajkovskij (which is the Czech spelling of Tchaikovsky) among artists in my library and it is currently sorted between Adele and Alan Parsons Project, i.e. it seems that the character Č has been completely omitted while sorting and thus the artist is sorted as Ajkovskij.

All my ID3 tags are of version 2.3 and in Unicode, thus this should not be any encoding problem. I even tried to change the ID3 tags to version 2.4, i.e. UTF-8, and it did not help.

I think that there must be many more people experiencing this problem. Not everyone has only English or ASCII names in the library and I am surprised that I could not find anything on this bug anywhere on the net yet.

Thanks for any help on this.