Issue #3294700: Warning: Undefined array key "type" in Drupal\views\Plugin\views\filter\Date->acceptExposedInput()

core/modules/views/src/Plugin/views/filter/Date.php

@@ -124,7 +124,7 @@ public function acceptExposedInput($input) {
     // Store this because it will get overwritten.
     $type = NULL;
     if ($this->isAGroup()) {
-      if (is_array($this->group_info)) {
+      if (is_array($this->group_info) && isset($this->group_info['type'])) {
         $type = $this->group_info['type'];
       }
     }
@@ -150,13 +150,16 @@ public function acceptExposedInput($input) {
     if ($operators[$operator]['values'] == 1) {
       // When the operator is either <, <=, =, !=, >=, > or regular_expression
       // the input contains only one value.
-      if ($this->value['value'] == '') {
+      if (isset($this->value['value'])) {
         return FALSE;
       }
     }
     elseif ($operators[$operator]['values'] == 2) {
       // When the operator is either between or not between the input contains
       // two values.
+      if (!isset($this->value['min']) || !isset($this->value['max'])) {
+        return FALSE;
+      }
       if ($this->value['min'] == '' || $this->value['max'] == '') {
         return FALSE;
       }