How to prevent quill from converting <br /> to new <li> items in list elements?

[bartek-p-adRespect]

I am experiencing an issue where Quill automatically converts
tags inside list elements (

) into new list items. I want to preserve the
tags as line breaks within the same list item, instead of creating a new list item.

My quill editor initializes when i click on a given element, and i destroy it when bluring or clicking on other element that can initialize editor on itself.

I've created a snippet that adds a custom binding for Shift+Enter inside lists and adds
instead of creating a new list item.

I've created a custom br element like this:

let Embed = Quill.import('blots/embed');

class CustomBR extends Embed {};
CustomBR.blotName = 'custombr';
CustomBR.tagName = 'br';
CustomBR.className = 'custombr';
Quill.register(CustomBR);

My quill editor is set up as follows:

currentEditor = new Quill(editableTarget, {
  modules: {
    toolbar: toolbarOptions,
    keyboard: {
      bindings: {
        linebreak: {
          key: 13,
          shiftKey: true,
          handler: function(range, context) {
            // If we're inside a list, insert a <br> tag instead of creating a new list item
            if (context.format.list) {
              this.quill.insertEmbed(range.index, 'custombr', true, Quill.sources.USER);
              this.quill.setSelection(range.index + 1, Quill.sources.SILENT);
              return false;  // prevent the default behavior
            }
            // Otherwise, allow default behavior
            return true;
          }
        }
      }
    }
  }
});

It seems that Quill's internal handling of lists automatically normalizes the content by converting
tags into new list items when focusing the editor. I need a way to prevent this behavior so that line breaks can be maintained inside list items. Is there a way to prevent it from doing so just for the list elements?

Quill version: 1.3.7
Browser: Chrome
OS: Windows 11