PNS router generates DRC violations when pushing tracks against a complex board outline

Description

• PNS router generates DRC violations when pushing tracks against a complex board outline
• I would expect the router to respect the design rules
• Also, the router is really slow during this operation, its hardly usable
• Example picture:

Steps to reproduce

1. Import a 'complex' board outline
2. Route some nets close to the outline
3. In routing mode, use the drag feature ('D' shortcut) and move the track as close to the edge as possible
4. Run the DRC
5. no profit :/

KiCad Version

Application: KiCad

Version: 6.0.4+dfsg-1~bpo11+1, release build

Libraries:
	wxWidgets 3.0.5
	libcurl/7.74.0 OpenSSL/1.1.1k zlib/1.2.11 brotli/1.0.9 libidn2/2.3.0 libpsl/0.21.0 (+libidn2/2.3.0) libssh2/1.9.0 nghttp2/1.43.0 librtmp/2.3

Platform: Linux 5.10.0-10-amd64 x86_64, 64 bit, Little endian, wxGTK, i3, x11

Build Info:
	Date: Mar 29 2022 16:51:55
	wxWidgets: 3.0.5 (wchar_t,wx containers,compatible with 2.8) GTK+ 3.24
	Boost: 1.74.0
	OCC: 7.5.1
	Curl: 7.74.0
	ngspice: 34
	Compiler: GCC 10.2.1 with C++ ABI 1014

Build settings:
	KICAD_USE_OCC=ON
	KICAD_SPICE=ON