private void computeDiffsToReturn() {
		diffsToReturn = new AddressSet(currentDiffs);
		if (!ignoreAddressSet.isEmpty()) {
			diffsToReturn.delete(ignoreAddressSet);
		}
		if ((restrictAddressSet != null) && !restrictAddressSet.isEmpty()) {
			diffsToReturn = diffsToReturn.intersect(restrictAddressSet);
		}
	}
Clear the set of addresses that are ignored. Ignored addresses will not
have differences reported by the <CODE>getDifferences</CODE> call.
Ghidra/Features/Base/src/main/java/ghidra/program/util/ProgramDiff.java