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Track created via python track.Duplicate() has same UUID as the original

Description

When a track is duplicated via the python Duplciate() method the duplicated track has the same UUID as the original - see the python example code below. This can cause problems if the original track is part of a group as both the original and duplicate track will be part of the group.

If you close the PCB Editor and then reopen the pcb, make a further change to the pcb and save it, Kicad will replace the UUID for one of the tracks with the same UUID with a new, unique one. This again causes problems if the track is part of a group. Note: similarly, zones duplicated via python Duplicate() method also have the same UUID as the original.

Expected behaviour is that the duplicated track has the same properties of the original track but a different UUID.

Python example code:

from pcbnew import *
board = pcbnew.GetBoard()
track = board.Tracks()[0]
track.m_Uuid.AsString()
# outputs '7e1b2742-06d6-47e8-9ebf-9143d81884de'
dup_track = track.Duplicate()
dup_track.m_Uuid.AsString()
# outputs '7e1b2742-06d6-47e8-9ebf-9143d81884de'

Workaround: If I make the following changes to C:\Program Files\KiCad\7.0\bin\Lib\site-packages\pcbnew.py then the python Duplicate() methods function as expected.

line 9493: original

    def Duplicate(self):
        r"""Duplicate(BOARD_ITEM self) -> BOARD_ITEM"""
        return _pcbnew.BOARD_ITEM_Duplicate(self)

workaround

    def Duplicate2(self):
        r"""Duplicate2(BOARD_ITEM self) -> BOARD_ITEM"""
        return _pcbnew.BOARD_ITEM_Duplicate(self)

line 9601 original

    def Duplicate(self):
        ct = self.GetClass()
        if ct=="BOARD":
            return None
        else:
            return Cast_to_BOARD_ITEM(self.Clone()).Cast()

workaround

    def Duplicate(self):
        ct = self.GetClass()
        if ct=="BOARD":
            return None
        else:
            return Cast_to_BOARD_ITEM(self.Duplicate2()).Cast()

Steps to reproduce

  1. Open the PCB Editor
  2. Create a single track
  3. Open the Scripting Console
  4. Duplicate the track via the Duplicate() python method on the PCB_TRACK
  5. Print both the original track's and duplicated track's UUID

KiCad Version


Version: 7.0.1, release build

Libraries:
	wxWidgets 3.2.2
	FreeType 2.12.1
	HarfBuzz 5.0.1
	FontConfig 2.14.1
	libcurl/7.83.1-DEV Schannel zlib/1.2.13

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

Build Info:
	Date: Mar 11 2023 03:41:46
	wxWidgets: 3.2.2 (wchar_t,wx containers)
	Boost: 1.80.0
	OCC: 7.6.2
	Curl: 7.83.1-DEV
	ngspice: 39
	Compiler: Visual C++ 1934 without C++ ABI

Build settings:
	KICAD_SPICE=ON