Fix router re-initialization bug

[steinybot]

Fixes #11300

[changeset-bot[bot]]

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Latest commit: 3d1394cc316a4dffab03c2403a511eea0f5eb6ed

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[remix-cla-bot[bot]]

Thank you for signing the Contributor License Agreement. Let's get this merged! 🥳

[steinybot]

Not sure what the deal is about updating react-router-dom. Do I need to make the same change there?