text should not be an obligatory property in MentionFeedObjectItem type

[Dumluregn]

📝 Details

In https://github.com/ckeditor/ckeditor5/blob/dd8827aac5e53fcd311982fbff70fc83fb0a4c3b/packages/ckeditor5-mention/src/mentionconfig.ts#L281, text is defined as an obligatory property in MentionFeedObjectItem type. If you use a custom ItemRenderer, it isn't necessary though - you can use other properties to derive the output HTML element. This is done e.g. in the manual test.

This is a soft blocker for the feature customisation written in TS. It requires using double casting the callbacks through type unknown when passing mention.feeds.feed and mentions.feeds.itemRenderer properties:

config.push( {
	marker: '/',
	feed: ( searchString: string ) => getMatchingCustomFeedObjects( searchString ) as unknown as Array<MentionFeedItem>,
	itemRenderer: this._customItemRenderer.bind( this ) as unknown as ItemRenderer
} );

[Dumluregn]

Changing the text field to optional was accepted by the Core team, we can proceed with the change.