void bookmarkChanged(BookmarkDB bm) {
		lock.acquire();
		try {
			DBRecord rec = bm.getRecord();
			if (rec != null) {
				bookmarkAdapter.updateRecord(rec);
				Address addr = bm.getAddress();
				program.setObjChanged(ProgramEvent.BOOKMARK_CHANGED, addr, bm, null, null);

			}
		}
		catch (IOException e) {
			dbError(e);
		}
		finally {
			lock.release();
		}
	}
Update stored bookmark and fire program change event for a bookmark which has
had its category or comment changed.  All other fields are immutable.
@param bm bookmark
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/database/bookmark/BookmarkDBManager.java