Hi everyone, the arabic keyboard have the letter ث doubled, while don't have the ظ letter ,I slove this by gonig to the keyboard folder and edit it the Arabic keyboard file , but when I update the koreader its return to the same problem doubled ث letter , so can any one help whith this problem thanks.

Hi everyone, the arabic keyboard have the letter ث doubled, while don't have the ظ letter ,I slove this by gonig to the keyboard folder and edit it the Arabic keyboard file , but when I update the koreader its return to the same problem doubled ث letter , so can any one help whith this problem thanks.
