Observing two slight manglings of the start of the message body, for a saved draft email in Evo 2.28.1 and 2.28.3.

Steps to reproduce:
* File -> New -> Mail message.
* Type some random characters (for the "To" field), press Tab key.
* Type some random characters (for the "Subject" field), press Tab key.
* Enter as the very first line of the message body "abcdefghijklmnop" (without any line breaks before this text or inside it, and without the quotes).
* Close the draft, and say "Save message".
* Reopen the draft message.

What should happen:
The message body should be exactly the same as when it was open before (i.e. just "abcdefghijklmnop" without any line breaks before it or inside it).

What actually happens:
I observe 2 possible results. The result is _either_ a):
"a|
bcdefghijklmnop"
... where "|" marks the cursor focus. I.e. first character, then the cursor/focus, then line break, then rest of the first line.
... or the result is b):
"
|
abcdefghijklmnop"
(i.e. an additional line break, then the cursor/focus, then an additional line break, then the first line).

In case a) I use an account/from address _with_ a signature enabled, and in case b) I use an account/from address with _no_ signature enabled. 

Additional information:
* In gconf, I do have /apps/evolution/mail/composer/no_signature_delim set to true, as per bug 551470 (not sure if that's relevant or not).
* The draft emails are plain text emails. I tested 2.28.1 with HTML mails (as well as plain text), and the same thing happened.