### Extra curly braces in latex() command?

Hi,

I am trying to copy latex code generated by Sage to Lyx. It seems Sage generates additional curly braces around (). For example, with:

```
sage: latex((alpha^2-alpha)*theta)
```

I get:

```
{\left(\alpha^{2} - \alpha\right)} \theta
```

If I paste this code to Lyx math, then there are unnecessary {} around the () showing.
Maybe it's LyX's problem since if I paste it to an .tex source and compile it then it does not show. However I already have a long document in LyX so it would be great if there is any way to get rid of {}.

Thank you!