I discovered that ChessX 1.0.0 doesn't handle the date tag in a pgn database correctly.
In dates that contain leading zeros e.g. "2014.01.04", leading zeros are replaced by " " (single space) so that the date looks something like "2014. 1. 4". when the game is replaced in the database. If I open this game and save it again the date will be overwritten with "????.??.??".
I'd really love to use ChessX but unfortunately due to this bug I can't make use of it to manage and maintain my pgn databases.
Best regards, Michael
(My OS: OpenSuse 13.1 x64)