Toponaming: Migration dialog gets triggered even after migrating to 1.1. #26690
Description
Problem description
Sometimes, FreeCAD will ask you to migrate a file that has already been migrated in the latest version of a program if said file has some specific objects (like an AdditivePipe.)
This issue happens because of inconsistencies in how StringHashers are saved; sometimes a hasher can be added to an object that has an empty Element Map. When that happens, the program will not save that object with that String Hasher.
Workbench affected?
Core (App, Gui,...)
Steps to reproduce
- Open the file in the latest version of 1.2.
- Press "Yes" if prompted to migrate.
- Save and re-open.
Expected behavior
The program should only prompt to migrate the file once.
Actual behavior
The program prompts to migrate the file every time it is loaded.
Development version About Info (in Safe Mode)
OS: Ubuntu 24.04.2 LTS (ubuntu:GNOME/ubuntu-xorg/xcb)
Architecture: x86_64
Version: 1.2.0dev.20251230 (Git shallow) AppImage
Build date: 2025/12/30 17:40:39
Build type: Release
Branch: grafted,grafted
Hash: f5759e580b6330906beca12b4be419b030a088ab
Python 3.11.14, Qt 6.8.3, Coin 4.0.3, Vtk 9.3.1, boost 1_86, Eigen3 3.4.0, PySide 6.8.3
shiboken 6.8.3, xerces-c 3.3.0, IfcOpenShell 0.8.2, OCC 7.8.1
Locale: English/United States (en_US)
Navigation Style/Orbit Style/Rotation Mode: Gesture/Rounded Arcball/Drag at cursor
Stylesheet/Theme/QtStyle: OpenLight.qss/OpenLight/
Logical DPI/Physical DPI/Pixel Ratio: 96/161.377/1
Installed mods:
* A2plus 0.4.68
* Render 2024.12.15 (Disabled)
* reload 0.2.0
* FeedsAndSpeeds 0.6.0
* ArchTextures
* Assembly3 0.12.2
* SaveAndRestore 0.2.1
* CadbaseLibrary 2.0.0
* Behave-Dark-Colors 0.1.1
* SearchBar 1.0.2
* Design456 0.0.1
* lattice2 1.0.0
* WebTools 1.0.0
* Manipulator 1.5.7
* toSketch 1.0.1
* Curves 0.6.60
* POV-Ray-Rendering
* Assembly4 0.50.19-dev
* cadquery-freecad-workbench 2.1.0
* MnesarcoUtils 0.2.16
* FreeCAD-Ribbon-v.1.9.1.9 1.9.1.9 (Disabled)
* Ondsel-Lens 2024.11.29.01 (Disabled)
* freecad.gears 1.3.0
* ExplodedAssembly
* TNamingPlayground
* fasteners 0.5.37
* FreeCAD-Telemetry 1.0.0beta (Disabled)
* QuickMeasure 2022.10.28
* FreeCAD-Ribbon 1.9.1.1
* Channels 0.1.0.dev2
* Movie 2025.1.4
* assembly2
* sheetmetal 0.7.55
* chrono-preprocessor-main
* Freecad-Built-in-themes-beta 1.2.2
* OpenTheme 2024.9.1
* FreecadDiscordPresence 1.0.3Last known good version (optional)
weekly-2025.12.24