Method restoreVertexTag

src/Mod/TechDraw/App/Geometry.cpp:1359–1371

look at the next element in the file. If it is a VertexTag, set the tag. readNextElement will stop searching when it encounters an end element (ex: ) or end of document.

//! readNextElement will stop searching when it encounters an end element (ex: </CosmeticVertex>) or
//! end of document.
void Vertex::restoreVertexTag(Base::XMLReader& reader)
{
    if (!reader.readNextElement()) {
        return;
    }

    if(strcmp(reader.localName(),"VertexTag") == 0) {
        std::string temp = reader.getAttribute<const char*>("value");
        setTag(Tag::fromString(temp));
    }
    // else we can not set the tag here.  if this is a CosmeticVertex, the tag will be set later.
    // the tag is not used for geometry vertices.
}

void Vertex::dump(const char* title)
{