Editor preview borked example

[aisejohan]

The following latex code doesn't preview correctly in the editor (but does work when I latex it in a file):

Thanks for the typo. I am not sure what you first question was, but it might be related to the following general question: given a morphism $f : (X, \mathcal{O}_X) \to (Y, \mathcal{O}_Y)$ and a $\mathcal{O}_Y$-module $\mathcal{G}$, how does one define the canonical map $H^0(Y, \mathcal{G}) \to H^0(X, f^*\mathcal{G})$? A good answer is to go back to the definition of the pullback of a module in Section \ref{008R} and define it using the construction of the pullback $f^*\mathcal{G}$. A more highbrow method is to use the adjunction mapping $\mathcal{G} \to f_*f^*\mathcal{G}$ and then use that $H^0(Y, f_*f^*\mathcal{G}) = H^0(X, f^*\mathcal{G})$.

Not sure if there is a hidden character in this...

[chngr]

Looks like it probably has to do with * and maybe _ being active characters in Markdown; the previewer wants to interpret these as italic or bold tags, and swallowing them before MathJaX can get to them.

[aisejohan]

This may explain why a commenter seems to have used \* in a comment. See this comment.

[pbelmans]

Yeah, that's the cause.

The previewer isn't as smart as the actual renderer, which handles this comment correctly. I can try to improve the preview a bit at some point.