void programClosed(Program program) {
		storeLocation(null);
		controller.clear();
		controller.programClosed(program);
	}
Called from within the FunctionGraph when selections are changed (e.g., if a user clicks
inside of a vertex)

@param selection the new selection
Ghidra/Features/FunctionGraph/src/main/java/ghidra/app/plugin/core/functiongraph/FGProvider.java