Timothy Flynn a17074422e LibWeb: Reset form association when any element with an ID changes ...

When an element with an ID is added to or removed from the DOM, or if
an ID is added, removed, or changed, then we must reset the form owner
of all form-associated elements who have a form attribute.

We do this in 2 steps, using the DOM document as the messenger to handle
these changes:

1. All form-associated elements with a form attribute are stored on the
   document. If the form attribute is removed, the element is removed
   from that list as well.

2. When a DOM element with an ID undergoes any of the aforementioned
   changes, it notifies the document of the change. The document then
   forwards that change to the stored form-associated elements.

2024-02-03 15:30:16 -07:00

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