Wrong encoding when reading file from bundle

[yashrk]

Reading from file in bundle «filesystem» corrupts UTF-8 symbols: for example, «Юникод» is converted to «Ð®Ð½Ð¸ÐºÐ¾Ð´» while the same string from the local file is read ok. To reproduce bundle must be runned outside build directory, because an external file can override file in bundle.