Reset the pagination offset once it exactly hits the total

A stored offset equal to the total was still one past the last row,
the same as being beyond it, but only ">" was checked - a filter that
tightened the total to exactly the stored offset (rather than below
it) queried a page that no longer existed and rendered empty.

Author: zonky2

src/Panel/DefaultLimitElement.php

@@ -285,9 +285,11 @@ private function defineOffsetAndAmountOption(int &$offset, int &$amount): void
             $offset = (int) $persistent['offset'];
             $amount = (int) $persistent['amount'];
 
-            // Hotfix the offset - we also might want to store it persistent.
-            // Another way would be to always stick on the "last" page when we hit the upper limit.
-            if ($offset > $this->intTotal) {
+            // A stored offset that no longer fits the current total - most commonly because a
+            // filter was changed or tightened since - would otherwise query a page that does not
+            // exist and render empty. ">=" rather than ">": an offset equal to the total is already
+            // one past the last valid row, the same as being beyond it.
+            if ($offset >= $this->intTotal) {
                 $offset = 0;
             }
         }