InputfieldPageAutocomplete getSelectedPages() not returning correct results, pages not appearing in list

[chriswthomson]

This bug was introduced here: processwire/processwire@63e555f#diff-02e6411f0efd862ee8bec32d0307b7d57cb0b1014b51054342bc11497b20eba6

getSelectedPages() does not return pages with a template specified in the additional templates setting (template_ids). By the looks of it, it only passes a single template to getById.

In practice, this results in selected pages not appearing in the list, even though their ID is in the field value.

Steps to replicate:

• Create a new InputfieldPageAutocomplete field
• Select a template under Selectable pages
• Select Additional templates
• Add the field to a page
• Select pages of all template types and save
• Only pages of the initial template will appear in the list.