Serious Kmail bug regarding the email forwarding feature

[MERLIN Philippe]

Hello,
I am in Debian Sid,  KMail 5.15.2 (20.08.2)
I wanted to redirect an email that I received to another person, I used 
the redirect function and enter the email address of this person, this 
person not seeing this email coming contacted me, looking in the 
messages sent I noticed that I had sent the email to myself, thinking I 
had made a mistake I repeated the operation same result. This Bug is 
new I have already redirected messages without problem.
Philippe Merlin