XSL: nbsp entity does not get properly treated

If you have

"x x"

in the .xsl, it becomes "x x"
If you have

" "

in the .xsl, it becomes "" instead of " "

I suspect some kind of trimmed() or simplified() is done in the wrong order.

See the mail task for the complete example.

A workaround is to use

<xsl:text>&#160;</xsl:text>