private void showSecondView() {
		codeViewerService.setListingPanel(diffListingPanel);
		activeProgram = primaryProgram;
		showingSecondProgram = true;
	}
Reload the marked differences in the diff panel.
Ghidra/Features/ProgramDiff/src/main/java/ghidra/app/plugin/core/diff/ProgramDiffPlugin.java