Version:           4.7 (using KDE 4.7.3) 
OS:                Linux

When replying to encrypted emails, KMail2 turns encryption off by default in the composer window.

I noticed this behaviour after switching to 4.7.3, this seems to be a regression compared to 4.4.11, the last version I used before.  Formerly replies to encrypted messages would try to be encrypted, regardless whether a valid encryption key could be found automatically.  This enhances security by preventing accidental unencrypted sending of confidential content.

Reproducible: Always

Steps to Reproduce:
1. Send yourself an encrypted email.
2. Start to write a reply to this email.

Actual Results:  
KMail does not set the "Encrypt" flag in the composer window.


Expected Results:  
KMail should try to encrypt the reply by default.