private void clearCursorMarkers() {
		if (p2CursorMarkers == null) {
			return;
		}

		markerManager.removeMarker(p2CursorMarkers, secondaryDiffProgram);
		p2CursorMarkers = null;
	}
Reload the marked differences in the diff panel.
Ghidra/Features/ProgramDiff/src/main/java/ghidra/app/plugin/core/diff/ProgramDiffPlugin.java