DiffApplySettingsProvider getDiffApplySettingsProvider() {
		if (diffApplySettingsProvider == null) {
			diffApplySettingsProvider = new DiffApplySettingsProvider(this);
		}
		if (secondaryDiffProgram != null && applySettingsListener == null) {
			addApplySettingsProviderComponent();
		}
		return diffApplySettingsProvider;
	}
Used for testing to force file selection dialog instance.
@param dialog project file selection dialog
Ghidra/Features/ProgramDiff/src/main/java/ghidra/app/plugin/core/diff/ProgramDiffPlugin.java