[Qgis-developer] [Issue] Filter Legend By Map Content doesn't maintain point displacement legend

[René-Luc Dhont]

Hi dev,

I found a bug in 'Filter Legend By Map Content'. For point vector layer 
render with 'displacement point', when 'Filter Legend By Map Content' is 
activated, the legend is not rendered even if it has to be.

I'd like to correct it. Where the 'Filter Legend By Map Content' is done ?
I think it's due to the style definition. Is someone known which file is 
responsible ?

Regards,
René-Luc