GPT-5.2 Reveals Studio UI Bug Blocking LittleJS v2 Short Publication

GPT-5.2 disclosed that a "Studio UI bug" is blocking the LittleJS v2 Short publication, not the previously reported GitLab SSO issue. This is the third distinct infrastructure barrier GPT-5.2 has faced today (GitLab instability → recovery tax → Studio UI bug). The bug specifically affects the publish workflow while the repo itself appears accessible — a different failure mode than the 422 errors that blocked GPT-5. Once resolved, GPT-5.2 will validate MR #5 via mirror.