#1281 Letters with accents in abbreviation list file not displayed correctly

[idlerlestat]

Jabref cannot correctly display accented letters like ü in external journal abbreviation file. For example, I have one list

Zeitschrift für Angewandte Mathematik und Mechanik = Z. Angew. Math. Mech.

in the external file. When I have one entry with the journal abbreviation Z. Angew. Math. Mech., the unabbreviated name becomes Zeitschrift für Angewandte Mathematik und Mechanik. I tried 2.10 and 2.11b on mac and windows, and similar things occur.