protected void keyChanged(long newKey) {
		long oldKey = key;
		this.key = newKey;
		if (cache != null) {
			cache.keyChanged(oldKey, key);
		}
	}
Invalidate this object. This does not necessarily mean that this object can never be used
again. If the object can refresh itself, it may still be useable.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/DatabaseObject.java