The problem is that inside Transaction::addObjectNew() a transaction object is deleted before removing it from the container. When deleting the corresponding transactional object (i.e. a DocumentObject or ViewProvider)
it can happen that it e.g. calls Transaction::addOrRemoveProperty() that now finds the dangling pointer in the container.
The safe way is to first remove the object from the container before deleting it.
* Change no need function newDocument("Unnamed") call to variant without parameter. "Unnamed" set in App newDocument function instead.
* Refactor New Document command to run without parameter.
* Translate new document's userName. Internal name = "Unnamed".
* Crowdin Add to updatets.py App.ts. Create new file App.ts
* Fix error where document name is set with one function parameter. In this situation set internal and user name to string variable. For default function call (without parameter) set internal name to Unnamed, userName = translate ("Unnamed")
Found via `codespell -q 3 -L aci,ake,aline,alle,alledges,alocation,als,ang,anid,anormal,apoints,ba,beginn,behaviour,bloaded,bottome,byteorder,calculater,cancelled,cancelling,cas,cascade,centimetre,childrens,childs,colour,colours,commen,connexion,currenty,dof,doubleclick,dum,eiter,elemente,ende,feld,finde,findf,freez,hist,iff,indicies,initialisation,initialise,initialised,initialises,initialisiert,inout,ist,itsel,kilometre,lod,mantatory,methode,metres,millimetre,modell,nd,noe,normale,normaly,nto,numer,oce,oder,ontop,orgin,orginx,orginy,ot,pard,parm,parms,pres,programm,que,rady,recurrance,ro,rougly,seperator,serie,sinc,siz,strack,substraction,te,technic,thist,thru,tread,uint,unter,uptodate,vertexes,wallthickness,whitespaces -S ./.git,*.po,*.ts,./ChangeLog.txt,./src/3rdParty,./src/Mod/Assembly/App/opendcm,./src/CXX,./src/zipios++,./src/Base/swig*,./src/Mod/Robot/App/kdl_cp,./src/Mod/Import/App/SCL,./src/WindowsInstaller,./src/Doc/FreeCAD.uml,./src/Base/StackWalker.cpp,./build/doc/SourceDocu`
* Add Placement::isSame() and expose to Python
* Add Placement::multRight/Placement::multLeft
* Fix PlacementPy::rotate
* Add Rotation::multRight/Rotation::multLeft
* Add a test feature FeatureTestPlacement for uni tests
* Add unit tests