Please describe the problem:
My opinion is, that a message-text shouldn't be changed in any way, when
redirecting it. In evolution a signature will be added automatically.

2nd problem:
You can't remove the signature with the drop-down box. If you choose another
signature, the signature will be added without any problems, but can't be
removed. You might add thousands of signatures, if you were bored.

Steps to reproduce:
1. Have a standard-signature or choose a signature from the dropdown-box.
2. Redirect (not foreward) an email
3. See the message-text


Actual results:
A signature will be added and the message altered.

Expected results:
The message should be redirected without any changes.

Does this happen every time?
Everytime you have signature.

Other information: