Revert "fix ignoring date format"

This reverts commit 8dea0c0.

Author: guram-vashakidze

src/Eloquent/DocumentModel.php

@@ -106,7 +106,7 @@ public function getQualifiedKeyName()
      *
      * @param  mixed $value
      */
-    public function fromDateTime($value): UTCDateTime|string
+    public function fromDateTime($value): UTCDateTime
     {
         // If the value is already a UTCDateTime instance, we don't need to parse it.
         if ($value instanceof UTCDateTime) {
@@ -117,9 +117,7 @@ public function fromDateTime($value): UTCDateTime|string
         if (! $value instanceof DateTimeInterface) {
             $value = parent::asDateTime($value);
         }
-        if (isset($this->dateFormat)) {
-            return $value->format($this->getDateFormat());
-        }
+
         return new UTCDateTime($value);
     }
 
@@ -150,6 +148,9 @@ public function getDateFormat()
     /** @inheritdoc */
     public function freshTimestamp()
     {
+        if (isset($this->dateFormat)) {
+            return Date::now();
+        }
         return new UTCDateTime(Date::now());
     }