Authorship of Rabbenu Gershom's Commentary to Talmud

Question

Who authored the commentary attributed to Rabbenu Gershom to tractate Temurah and other tractates such as Bava Batra?

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I recall reading some who doubted the traditional attribution, or suggesting that the text evolved.

Answer 1

This article in Yeshurun asserts that he did not author the commentary on the talmud attributed to him, although perhaps it is based on his commentary.