Custom page model inheritance order can effect streamblock render

[pjho]

Using a custom page model https://wagtail-advanced-form-builder.readthedocs.io/en/latest/getting_started/using_your_own_page_models/

When using a BasePage instead of Page directly - to get the streamfield block working I needed to change:

class EmailFormBuilderPage(Page, AbstractAdvancedEmailForm):

to

class EmailFormBuilderPage(AbstractAdvancedEmailForm, Page):

Might be good to add a note to docs.