kmail does not quote the same depending on reply type

Hello list... I think this is a "bug", however I don't know how to file: I use kmail 1.9.10 on TDE 3.5.13.2 (running on openSuSE 13.1). When I click "Reply" or "Reply to author" I mostly get no texte quoted (although it *does* work sometime, I did not yet find out when and why). *but* if I click "Reply to all" or "Rely to mailing list" the message gets quoted... If I remember well I did not have the problem with wheezy, so it may be only the SuSE RPM version. Thierry