Embedding hypothes.is breaks internal link navigation in some cases

[Stvad]

first noticed on https://vlad.roam.garden/Vlad's-Dating-Profile

associated errors:

DOMException: Node.insertBefore: Child to insert before is not a child of this node [react-dom.production.min.js:209:194](webpack:///node_modules/react-dom/cjs/react-dom.production.min.js)
DOMException: Node.insertBefore: Child to insert before is not a child of this node [react-dom.production.min.js:209:194](webpack:///node_modules/react-dom/cjs/react-dom.production.min.js)
Uncaught (in promise) DOMException: Node.insertBefore: Child to insert before is not a child of this node