Is “Zhang Yi deceived King Huai of Chu by falsely claiming six li of fief as six hundred li.” true?

Records of the Grand Historian, Biography of Zhang Yi, records: 'When Yi arrived in Qin, he pretended to be drunk and fell from his carriage, claiming illness and not appearing for three months... Then he rose and went to court, and said to the Chu general: "Why have you not received the land? From such a place to such a place, it is six li in extent."' Chronicles of the Eastern Zhou Kingdoms, chapter 91, has the same plot: 'Zhang Yi pretended to be drunk, missed his step, and fell from the carriage... Zhang Yi said: "Why should this matter be reported to the King of Qin? What I spoke of was my own fief of six li, which I voluntarily offer to the King of Chu."'