dekko2 (OTA-5) freezes reproducible on simple ASCII text mail

[guru]

Hello,
I get every morning from one of our Linux development hosts a simple ASCII text mail produced by our nightly build process. When I open this mail in Dekko2, it tries to present this in a new screen but freezes. Only the Subject: is written on top of the screen. I could provide the mail in mbox format for debugging.

matthias