<!-- --------Before Creating a New Issue----------- * Limit report to a single issue. * Search the issue tracker to verify the issue has not already been reported. * Complete all instructions between `template comment markers <>. * Keep report contents limited to the necessary information required to fix the issue. * When creating an issue against the stable version of KiCad, make sure the latest available stable version is installed as issues may have already been resolved in later stable versions. --> # Description <!-- What is the current behavior and what is the expected behavior? --> <!-- If the issue is visual/graphical, please attach screenshots of the problem. --> <!-- Add the issue details below this line and before the "Steps to reproduce" heading. --> 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: ```import pcbnew 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 <!-- If there are multiple steps to reproduce it or it is a visual issue, then providing a screen recording as an attachment to this report is recommended. --> <!-- If this issue is specific to a project, please attach the necessary files to this issue. --> <!-- Add the steps to reproduce using the numbers below --> <!-- Add new step numbers before the "KiCad Version" heading. --> 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 <!-- Copy version information (from main menu Help->About KiCad ->Copy Version Info) and paste it between the triple backticks below to preserve the formatting. --> ```Application: KiCad PCB Editor x64 on x64 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 ```