mentions - after typing space - list disappears

[kuku711]

📝 Provide detailed reproduction steps (if any)

Attached is a video demonstrating the problem
The demonstration of the problem was done from the editor's documentation
https://user-images.githubusercontent.com/59637560/143765275-9aed6993-8cd1-4b09-bb7f-3714b0ca1b57.mp4

✔️ Expected result

The list will continue to be displayed, taking into account the space typed

❌ Actual result

The list disappears

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[FilipTokarski]

Hi, thanks for the report. This issue is known and there's a feature request for this. If you'd like to see it implemented, please add 👍 and any other information you find important.
I'll close this one as a duplicate.