Allow separate citation instances to have their own page numbers.

bibcite_footnotes.module

@@ -76,6 +76,7 @@ function bibcite_footnotes_preprocess_footnote_list(&$variables) {
       $url = Url::fromUserInput('#' . $fn['ref_id'], ['attributes' => ['id' => $fn['fn_id'], 'class' => 'footnote-link']]);
       $link = Link::fromTextAndUrl(($footnote_link_text), $url)->toRenderable();
       $build['footnote-link'] = $link;
+      $override_page_in_citation = $fn['page'] ? $fn['page'] : FALSE;
     }
     else {
       // Output footnote that has more than one reference to it in the body.
@@ -93,6 +94,7 @@ function bibcite_footnotes_preprocess_footnote_list(&$variables) {
 
         $i++;
       }
+      $override_page_in_citation = FALSE;
     }
 
     if (!empty($fn['text'])) {
@@ -114,7 +116,9 @@ function bibcite_footnotes_preprocess_footnote_list(&$variables) {
 
     if (!empty($reference_entity_id)) {
       $citation_build = $citation_tools->getRenderableReference($reference_entity_id);
-
+      if ($override_page_in_citation) {
+        $citation_build['#data']['page'] = $override_page_in_citation;
+      }
       $build[] = $citation_build;
       $render = render($build);
       $item['#markup'] = $render;