Re: [whatwg/dom] Proposal: a DocumentFragment whose nodes do not get removed once inserted (#736)

> you'd have persistent fragments in persistent fragments

which is fine, and since appending a fragment to itself breaks, there's nothing different on the DOM.

Current implementation / proposal allows shared nodes between fragments, which is the same as creating a fragment on the fly and append any node found in the wild: nothing stops your from doing that, everything works, no error thrown.

The current idea is that keeping it simple is the only way to quickly move forward, while any ownership concept would require bigger, non backward compatible, changes.

Libraries and frameworks authors won't worry about that anyway, 'cause they are the one creating nodes too, and they are those virtualizing thee in trees.

Having a mechanism to move N nodes at once, accordingly with any DPF appended live, it's also a feature that would simplify state-machine driven UIs.

Last, but not least, hyperHTML has this primitive since long time and it works already, but it doesn't play super nice with the DOM if thrown there as is, and it requires special treatment when used right away.

This proposal would cover that case can much more.

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