`TransitionGroup` causes hydration mismatch with `tag` fallthrough prop in SSR

[L33Z22L11]

Vue version

3.5.13

Link to minimal reproduction

https://play.vuejs.org/#__SSR__eNp9kkFPAjEQhf9K0wuY4G4AT7iYoOGgBzXqsZfNMqyFbtu0s4gh+9+ddgVRYW/te1+TN5234zNrk00NfMIzXzhpkXnA2t4ILStrHLI7U1m2dKZigidpuAVe8Guhs7R9QjBdECqrcgS6MZbFZ5iXU8EXciN4VElXkk3W8EnykMThaJylSv43R13m+I+ZxVh0zNKjEHzA0RdGL2WZrLzRNOIu0IIXREsF7smiNNoLPmHRCV6ulPl4iBq6GgZ7vXiHYn1CX/lt0AR/duDBbehnDh7mrgRs7fnrI2zpfDArs6gV0R3mC3ij6pCxxW5rvaDYR1xMex8XJXX55udbBO33Q4WggWwiLzjtLXzUudF/4o6Tq/hO6IZ+cb/z8x3ZsdrDDNF51rRd6RHfo4oITRvwyPJoTg9c/4LMYBkFiTJlPwJB7CoVupymC8kvS2diglgNrwyy9LsLJ6DfvWi+AENz+cA=

Steps to reproduce

See in link.

What is expected?

Render tag as CSR.

What is actually happening?

Tag is not rendered.

System Info

Any additional comments?

No response

[edison1105]

a workaround Playground

When the tag is not explicitly declared, TransitionGroup is rendered as a Fragment on the server side. However, on the client side, due to attr fallthrough, TransitionGroup is rendered as a div.