Why does the fitter uses a different memory type than MLAB, even when I use 'ram_style = MLAB' attribute?

Description

Due to a problem in the Intel® Quartus® Prime software, the fitter will ignore the 'ram_style' attribute set to MLAB for an inferred memory. 

Resolution

This problem is fixed in the 18.0 release of the Intel® Quartus® Prime Pro Edition software.