- Added some new method to EntityCollection (replaceWith, mergeWith, randomize, sort)

- WIP on virtual fields
- Some minor bugfixes

src/QueryBuilder.php

@@ -29,6 +29,23 @@ class QueryBuilder
 
     protected array $queryStack = [];
 
+    public function __clone() 
+    {
+        if ($this->where ?? false) {
+            #$this->where = clone $this->where;
+            #$this->where->queryBuilder = $this;
+        }
+        
+        if ($this->having ?? false) {
+            #$this->having = clone $this->having;
+            #$this->having->queryBuiler = $this;
+        }
+        
+        if ($this->parent ?? false) {
+            #$this->parent = clone $this->parent;
+        }
+    }
+    
     public function select($field) : self
     {
         if ( null !== ( $select = $this->getFragment(Query\Select::class) ) ) {