What is the meaning of "Mixed width RDW Mode" column in Quartus® Prime Fitter RAM summary?

Description

Due to a problem in the Quartus® Prime Pro and Standard Edition software, in the Fitter RAM summary the column which represents  the "Mixed Port Read During Write mode" is incorrectly named  "Mixed width RDW Mode". The correct column name should be “Mixed-Port RDW".

Resolution

This problem is scheduled to be fixed in a future release of the Quartus® Prime Pro Edition Software. 

See also this related KDB:

Why is the "Mixed width RDW Mode" column blank in the Fitter RAM summary?