Schematic Editor: Alternate pin assignment cannot be undone

Description

The title says it all, basically. When trying to undo an alternate pin assignment, the symbols flickers, but noting changes

Steps to reproduce

1. in a symbol with alternate pins, assign an alterate pin
2. undo (Ctrl-Z) and see the symbol flicker, but nothing changes

KiCad Version

Application: KiCad Schematic Editor x64 on x64

Version: (7.99.0-285-gc06cea2fe9), release build

Libraries:
	wxWidgets 3.2.2
	FreeType 2.12.1
	HarfBuzz 6.0.0
	FontConfig 2.14.1

Platform: Windows 11 (build 22621), 64-bit edition, 64 bit, Little endian, wxMSW

	wxWidgets: 3.2.2 (wchar_t,wx containers)
	Boost: 1.81.0
	OCC: 7.6.2
	Curl: 7.87.0-DEV
	ngspice: 39
	Compiler: Visual C++ 1934 without C++ ABI

Build settings:
	KICAD_SPICE=ON