Form components missing after import (with Webform 5.x-2.3)

After importing a webform, all of its form components are missing. When taking a closer look at the code generated by the export, I noticed this:

...
'webform' => 
  array (
    'nid' => '11073',
    'confirmation' => '<p>Thank you. Your Form has been submitted.</p>',
    'teaser' => '0',
    'submit_text' => '',
    'submit_limit' => '-1',
    'submit_interval' => '-1',
    'email' => '',
    'email_from_name' => 'default',
    'email_from_address' => 'default',
    'email_subject' => 'default',
    'additional_validate' => '',
    'additional_submit' => '',
    'roles' => 
    array (
      0 => '1',
      1 => '2',
      2 => '3',
    ),
    'components' => 
    array (
      1 => 
      array (
        'nid' => '11073',
        'cid' => '1',
        'form_key' => 'first_name',
        'name' => 'First Name',
        'type' => 'textfield',
        'value' => '',
        'extra' => 
        array (
          'width' => '',
          'maxlength' => '',
          'field_prefix' => '',
          'field_suffix' => '',
          'disabled' => 0,
          'description' => '',
          'attributes' => 
          array (
          ),
        ),
        'mandatory' => '1',
        'email' => '1',
        'pid' => '0',
        'weight' => '0',
        'page_num' => 1,
      ),
...

It doesn't seem right for the export to be mentioning the original nid for the form components, given that the nid for the resulting webform will not be the same. Any idea on how to get this to work? Recreating webforms by hand is dull as hell.