Mentions (@) plugin: suggestions disappears after clicking space bar

[volleybox]

I have such bug while using Mentions plugin for Ckeditor 5:
Some of my autocomplete suggestions have whitespaces between words as you see on screen below.

After clicking a space bar suggestions disappears and first suggestion is choosed. The same story is for slash (/) character.
Maybe you will tell that whitespaces shouldn't be used in hashtags. Ok, but what about users mentions? I just checked that on Slack that works fine.

My implementation is very similar to this example: https://ckeditor.com/docs/ckeditor5/latest/features/mentions.html Of course if there will be such need I can place it here.

Do you have some solutions / workarounds of that bug? In the worst scenario I will just remove whitespaces between words :(

[Mgsy]

@jodator, can you take a look at this one?

[jodator]

Yes, this is intended behavior. I agree that this might be misleading for space as we only trigger mention UI for a marker + text (without spaces inside), so we use a space as a trigger to insert a mention. Other keys used for this are enter and tab. We probably could add a configuration for allowing/excluding certain keys on Mention UI.

Unfortunately, I don't have anything to overcome that but you can have your feed callback that would look into your feed data excluding space. In other words: for now users could type "adrianpat" and your feed callback should match "Adrian Patucha" for this.

As we already have a ticket for this: #4665 I'm closing this as a duplicate. You can add 👍 reaction to that ticket (issue description) as we look into tickets with many reactions to choose on what to fix in the first place.

As for / - the same will happen if you don't match any item in the feed so if there is no item in the feed the mention UI is closed.