Position is not able to be changed

[Jamiewarb]

When using the position attribute to move a group to the sidebar of the edit page, I've encountered an error with the migrations script.

It appears that the option is added always as position => normal, even when position => side is declared, as shown below.

The expected outcome as created in Custom Fields plugin:

acf_add_local_field_group(array (
    ...
    'menu_order' => 0,
    'position' => 'side',
    'style' => 'default',
    'label_placement' => 'top',
    'instruction_placement' => 'label',
    'hide_on_screen' => '',
    'active' => 1,
    'description' => '',
));

The actual outcome in export.php:

...
"options" => [
    "position" => "normal",
    "hide_on_screen" => ""
],
"menu_order" => 0,
"position" => "side",
"style" => "default",
"label_placement" => "top",
"instruction_placement" => "label",
"hide_on_screen" => "",
"active" => 1,
"description" => ""

The problem persists even when explicitly defining the options array in migrations:

'position' => 'side',
'options' => [
    'position' => 'side',
],

[Jamiewarb]

The same is also true for the menu_order flag:

The following code:

$migrations->addFieldGroup( 'Dynamic Content', [
        'page_template',
        '==',
        'templates/homepage.php',
    ], [
        'menu_order' => 1,
        'style' => 'default',
        'label_placement' => 'top',
        'instruction_placement' => 'label',
    ] );

Results in this output:

function acf_migrations_add_local_field_groups() {

    acf_add_local_field_group( [
        "key" => "group_3c4e0a6",
        "title" => "Dynamic Content",
        "location" => [
            [
                [
                    "param" => "page_template",
                    "operator" => "==",
                    "value" => "templates/homepage.php"
                ]
            ]
        ],
        "options" => [
            "position" => "normal",
            "hide_on_screen" => ""
        ],
        "menu_order" => 0, // Here's the offending value
        "style" => "default",
        "label_placement" => "top",
        "instruction_placement" => "label"

[Jamiewarb]

This will be picked up in #12 from now on.