fix: solve fragmentidmap intersect logic

Author: agviegas

packages/fragments/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@thatopen/fragments",
   "description": "Simple geometric system built on top of Three.js to display 3D BIM data efficiently.",
-  "version": "2.3.0-alpha.8",
+  "version": "2.3.0-alpha.9",
   "author": "That Open Company",
   "contributors": [
     "Antonio Gonzalez Viegas (https://github.com/agviegas)",

packages/fragments/src/fragment-utils.ts

@@ -46,7 +46,7 @@ export class FragmentUtils {
     for (const map of maps) {
       mapsCount++;
       for (const fragID in map) {
-        if (visitedIDs.has(fragID)) {
+        if (!visitedIDs.has(fragID)) {
           visitedIDs.set(fragID, {
             count: 0,
             ids: new Map(),