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Add warning about unregistering image formats.

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Add warning to documentation to warn that unregistering image formats
that are being used will create an error when viewing or editing pages.

See https://groups.google.com/forum/#!topic/wagtail/X8xTUs-2npA and
https://github.com/wagtail/wagtail/issues/1471#issuecomment-118436706.
This commit is contained in:
Martey Dodoo 2018-08-10 11:54:58 -04:00 committed by Matt Westcott
parent 7ad79c9a4a
commit 1247565d3d
1 changed files with 3 additions and 0 deletions
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3
docs/advanced_topics/customisation/page_editing_interface.rst
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@ -143,6 +143,9 @@ To begin, import the ``Format`` class, ``register_image_format`` function, and o
To unregister, call ``unregister_image_format`` with the string of the ``name`` of the ``Format`` as the only argument.
.. warning::
Unregistering ``Format`` objects will cause errors viewing or editing pages that reference them.
.. _custom_edit_handler_forms:
Customising generated forms