@Override
	public void init() {
		super.init();
		originalBookmarkMgr = originalPgm.getBookmarkManager();
		latestBookmarkMgr = latestPgm.getBookmarkManager();
		myBookmarkMgr = myPgm.getBookmarkManager();

		conflictSet = new AddressSet();
		resolvedSet = new AddressSet();
		conflicts = new Hashtable<Address, ArrayList<BookmarkUid>>();
	}
Constructs a comments merger.
@param listingMergeMgr the listing merge manager that owns this merger.
Ghidra/Features/Base/src/main/java/ghidra/app/merge/listing/BookmarkMerger.java