[v11.0.x] Canvas: Fix datalinks using field variable (#87275)

Canvas: Fix datalinks using field variable (#87265)

(cherry picked from commit 6c7485129b)

Co-authored-by: Drew Slobodnjak <60050885+drew08t@users.noreply.github.com>

public/app/plugins/panel/canvas/utils.ts

@@ -119,7 +119,9 @@ const addDataLinkForField = (
 ): void => {
   if (field?.getLinks) {
     const disp = field.display ? field.display(data) : { text: `${data}`, numeric: +data! };
-    field.getLinks({ calculatedValue: disp }).forEach((link) => {
+    // TODO add more control over which row index each element uses
+    const valueRowIndex = field.values.length - 1;
+    field.getLinks({ calculatedValue: disp, valueRowIndex }).forEach((link) => {
       const key = `${link.title}/${link.href}`;
       if (!linkLookup.has(key)) {
         links.push(link);