GUI2 bug fix for Force graph

Change-Id: I6f47f22327ec115a7a59dd8a6d685f74fccfbe5f
diff --git a/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/models/link.ts b/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/models/link.ts
index 7192de0..d5ff2a7 100644
--- a/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/models/link.ts
+++ b/web/gui2-topo-lib/projects/gui2-topo-lib/src/lib/layer/forcesvg/models/link.ts
@@ -47,6 +47,7 @@
     portA: string; // The number of the port at one end
     portB: string; // The number of the port at the other end
     type: LinkType;
+    rollup: RegionRollup[]; // Links in sub regions represented by this one link
 
     // Must - defining enforced implementation properties
     source: Node;
@@ -96,7 +97,6 @@
  * model of the topo2CurrentRegion region link from Region
  */
 export class RegionLink extends Link {
-    rollup: RegionRollup[]; // Links in sub regions represented by this one link
 
     constructor(type: LinkType, nodeA: Node, nodeB: Node) {
         super(nodeA, nodeB);