### quantum-studio: a code's summary, certificate and lattice change in one step

- **The error-correction pane** ([quantum-studio/src/qec-view.js](quantum-studio/src/qec-view.js)) showed a newly chosen
  code's summary and decoders while its seal was still being checked, over the lattice and the certificate of the code
  chosen before; a qubit clicked in that moment was flipped in the new code. The seal is now checked first, and the
  summary, the decoders, the certificate and the lattice change together, as a decode's already did. A threshold drew
  its plot before the check and wrote its reading after; they change together too. The browser test read the lattice
  as soon as the summary named the new code, and once saw the surface code's two faces where it expected the colour
  code's nine; it is unchanged, and passes with the seal's check slowed, where it failed before.
