$relatableSearchResults not work when attach item

[yong9402211]

• Laravel Version: 9.38.0
• Nova Version: 4.18.2
• PHP Version: 8.1.6
• Database Driver & Version:
• Operating System and Version: Mac 12.3
• Browser type and version: Edge
• Reproduction Repository:

Description:

Is it $relatableSearchResults only work for BelongTo?
I try to use it at BelongsToMany, when attach item, look like not work, it still show all search result.
But it work at BelongTo.

And the search performance also slow. Is there anyway can improve it?

And can show some result when initial open the selection box instead of no show any record?
If $relatableSearchResults = 30 then initial show 30 record?

Screenshot:

public static $relatableSearchResults = 3;

BelongToMany:

BelongTo:

Detailed steps to reproduce the issue on a fresh Nova installation: