Habrapochogluk.

The problem is that if the subject of the letter is equal to one space (maybe with a large number as well (did not check)).
It is not possible to open it ...



I propose to insert into the line of the incoming message an icon that will open the message regardless of the presence and content of the topic.
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Ps.: It was possible to reveal one such letter by looking at the number in the address between the previous and the next letter.

upd: As I was prompted below, you can still drive the tabs to this line and koznut enter, or look at the source of the page (I confess, I didn’t think of it right away)