@Override
	public void domainObjectChanged(DomainObjectChangedEvent event) {
		// reset the view of the disassembled data
		if (displayComponent.isVisible()) {
			disassembleLocation(currentLocation);
		}
	}
We want to make sure that we no longer have any contents when the
program is deactivated so that we do not make any more calls to the
program or its plugins.

@param program The program being deactivated.
@see ProgramPlugin#programDeactivated(Program)
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/disassembler/DisassembledViewPlugin.java