Router: hugging a 45° track to an existing via leaves gap

Description

2021-06-05-22-37-13

In H/V direction hugging to vias works perfectly, but for 45° tracks a small gap remains:

KiCad Version

Application: KiCad PCB Editor (64-bit)

Version: (5.99.0-10845-g42394b16a3), release build

Libraries:
	wxWidgets 3.1.5

Platform: Windows 10 (build 19042), 64-bit edition, 64 bit, Little endian, wxMSW

	wxWidgets: 3.1.5 (wchar_t,STL containers)
	Boost: 1.75.0
	OCC: 7.5.0
	Curl: 7.74.0-DEV
	ngspice: 34
	Compiler: Visual C++ 1928 without C++ ABI

Build settings:
	KICAD_USE_OCC=ON
	KICAD_SPICE=ON