@Override
	ProgramLocation getProgramLocation() {
		// not sure what the best thing is...for now, just broadcast the first address
		return new ProgramLocation(vertex.getProgram(), vertex.getVertexAddress());
	}
A bit of a hack that triggers the text area to update its preferred height now before we
render so that it doesn't change later.
Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/graph/vertex/GroupedFunctionGraphComponentPanel.java