OpenAI purposely added a smug one-liner before web searches in ChatGPT 5.4. Anyone found a way to turn it off?

Starting with 5.4, whenever ChatGPT needs to run a web search, it drops a smug one-liner first. Every. Single. Time. Buried in the release notes I found a line about how it now "may show a short preamble before reasoning starts," so apparently this was intentionally added as a new "feature." I've tried custom instructions but nothing has stopped it yet.