14 months ago, a frontier AI lab cut off a code editor's models in the middle of an acquisition. Six weeks later that editor was carved up and sold for parts. The lab was Anthropic. The buyer whose $3B deal died was OpenAI. Today OpenAI ran the same play on Cursor. Back in June 2025, Anthropic pulled Windsurf's Claude access with less than 5 days notice while OpenAI was closing a $3 billion acquisition of the company. Jared Kaplan said the quiet part out loud, "it would be odd for us to be…