Whitespace before task list item text is not trimmed

[BiosSun]

Consider the following example (note there are three space characters before the list item text item):

- [ ]   item
-   item

Below is the parsed syntax tree data. As you can see, in the task list item, two space characters are preserved before the text, while in the regular list item, all leading whitespace is trimmed:

{
    "type": "root",
    "children": [
        {
            "type": "list",
            "children": [
                {
                    "type": "listItem",
                    "children": [
                        {
                            "type": "paragraph",
                            "children": [
                                {
                                    "type": "text",
                                    "value": "  item"
                                }
                            ]
                        }
                    ]
                },
                {
                    "type": "listItem",
                    "children": [
                        {
                            "type": "paragraph",
                            "children": [
                                {
                                    "type": "text",
                                    "value": "item"
                                }
                            ]
                        }
                    ]
                }
            ]
        }
    ]
}

I'm not sure what causes this inconsistency or whether it should be fixed. Any insights would be appreciated.