Unset default of AllowedFilter after it was set once, which was possible with default(null) before nullable filters where implemented in 5.6.0

src/AllowedFilter.php

@@ -176,6 +176,14 @@ public function nullable(bool $nullable = true): self
         return $this;
     }
 
+    public function unsetDefault(): self
+    {
+        $this->hasDefault = false;
+        unset($this->default);
+
+        return $this;
+    }
+
     protected function resolveValueForFiltering($value)
     {
         if (is_array($value)) {

tests/FilterTest.php

@@ -562,6 +562,28 @@ public function __invoke(Builder $query, $value, string $property): Builder
     expect($models->count())->toEqual(1);
 });
 
+it('should filter by query parameters if a default value is set and unset afterwards', function () {
+    TestModel::create(['name' => 'John Doe']);
+
+    $filterWithDefault = AllowedFilter::exact('name')->default('some default value');
+    $models = createQueryFromFilterRequest([
+            'name' => 'John Doe',
+        ])
+        ->allowedFilters($filterWithDefault->unsetDefault())
+        ->get();
+
+    expect($models->count())->toEqual(1);
+});
+
+it('should not filter at all if a default value is set and unset afterwards', function () {
+    $filterWithDefault = AllowedFilter::exact('name')->default('some default value');
+    $models = createQueryFromFilterRequest([])
+        ->allowedFilters($filterWithDefault->unsetDefault())
+        ->get();
+
+    expect($models->count())->toEqual(5);
+});
+
 it('should apply a filter with a multi-dimensional array value', function () {
     TestModel::create(['name' => 'John Doe']);