'edit->grid origin' sign error when 'Y increases up' is set

1. I have been working with 'Y increases up'. [Conforming to usual practice for PCB design tools I have used before... Am new to kicad.]
2. Setting grid origin to for example 0,3.1 actually puts the grid origin at 0,-3.1. [Perhaps a simple error converting the user input type-in for edit->gridorigin to internal coordinates?]

KiCad Version

Application: KiCad PCB Editor x64 on x64

Version: 8.0.8, release build

Libraries:
	wxWidgets 3.2.6
	FreeType 2.13.3
	HarfBuzz 10.0.1
	FontConfig 2.15.0

Platform: Windows 11 (build 22631), 64-bit edition, 64 bit, Little endian, wxMSW
OpenGL: Intel, Intel(R) UHD Graphics 770, 4.6.0 - Build 31.0.101.4575

	wxWidgets: 3.2.6 (wchar_t,wx containers)
	Boost: 1.86.0
	OCC: 7.8.1
	Curl: 8.10.1-DEV
	ngspice: 44
	Compiler: Visual C++ 1942 without C++ ABI

Build settings: