Fill in blanks for IntegerWeightSelector (Islandora#2065) (#863)

Authored-by: Ant Brown <ant@catalyst.net.nz>

src/Plugin/views/field/IntegerWeightSelector.php

@@ -46,12 +46,13 @@ class IntegerWeightSelector extends FieldPluginBase {
       $options[$this->getValue($row)] = $this->getValue($row);
     }
 
-    // If we were given some blank values we need to fill
+    // If we were given some blank values, or less than the
+    // total_rows for the view, we need to fill
     // out the option list from 1 through the result count
     // to make sure we have enough. (Blanks should only appear
     // at the beginning of the results list.)
     // Also, blank values will break the selector, remove it.
-    if (array_key_exists('', $options)) {
+    if (array_key_exists('', $options) || (count($options) < $this->view->total_rows)) {
       unset($options['']);
       for ($i = 1; $i <= $this->view->total_rows; $i++) {
         $options[$i] = $i;