I actually don't think$^{\dagger}$ that this example is in Laumon/Moret-Bailey, but Jonathan Wang's senior thesis is a detailed write up in the style of LMB (and in English!) of this fact: http://math.harvard.edu/theses/senior/wang/wang.pdf.

$^{\dagger}$ Edit: I stand corrected!

I actually don't think$^{\dagger}$ that this example is in Laumon/Moret-Bailey, but Jonathan Wang's senior thesis is a detailed write up in the style of LMB (and in English!) of this fact: thesis and the arXiv link.

$^{\dagger}$ Edit: I stand corrected!

I actually don't think that this example is in Laumon/Moret-Bailey, but Jonathan Wang's senior thesis is a detailed write up in the style of LMB (and in English!) of this fact: http://math.harvard.edu/theses/senior/wang/wang.pdf.

I actually don't think$^{\dagger}$ that this example is in Laumon/Moret-Bailey, but Jonathan Wang's senior thesis is a detailed write up in the style of LMB (and in English!) of this fact: http://math.harvard.edu/theses/senior/wang/wang.pdf.

$^{\dagger}$ Edit: I stand corrected!