If I have a Calligra Words window open with one file and then open another, the titlebar in both changes to the second file's name. Is this a bug, a wrong setting somewhere or something i've done wrong or misunderstood. Calligra Words otherwise behaves and looks better than Libre Office, but the first time I saw this happen i thought I'd lost an important file, and it doesn't make sense. Kate and Libre Office don't have this behaviour with two files open.

Thanks.

(Linux Mint 16 KDE 64 bit, KDE 4.11.3)