diff --git a/phpstan-baseline.php b/phpstan-baseline.php
index 3cbe5a4732fc..beb2d85a4d84 100644
--- a/phpstan-baseline.php
+++ b/phpstan-baseline.php
@@ -56,11 +56,6 @@
 	'count' => 1,
 	'path' => __DIR__ . '/system/BaseModel.php',
 ];
-$ignoreErrors[] = [
-	'message' => '#^Only booleans are allowed in &&, string given on the right side\\.$#',
-	'count' => 7,
-	'path' => __DIR__ . '/system/BaseModel.php',
-];
 $ignoreErrors[] = [
 	'message' => '#^Only booleans are allowed in a ternary operator condition, array\\|null given\\.$#',
 	'count' => 1,
@@ -2628,7 +2623,7 @@
 ];
 $ignoreErrors[] = [
 	'message' => '#^Only booleans are allowed in &&, string given on the right side\\.$#',
-	'count' => 3,
+	'count' => 2,
 	'path' => __DIR__ . '/system/Model.php',
 ];
 $ignoreErrors[] = [
diff --git a/system/BaseModel.php b/system/BaseModel.php
index 80baaf3fb024..e8e746e64c25 100644
--- a/system/BaseModel.php
+++ b/system/BaseModel.php
@@ -770,11 +770,11 @@ public function insert($data = null, bool $returnID = true)
         // Set created_at and updated_at with same time
         $date = $this->setDate();
 
-        if ($this->useTimestamps && $this->createdField && ! array_key_exists($this->createdField, $data)) {
+        if ($this->useTimestamps && $this->createdField !== '' && ! array_key_exists($this->createdField, $data)) {
             $data[$this->createdField] = $date;
         }
 
-        if ($this->useTimestamps && $this->updatedField && ! array_key_exists($this->updatedField, $data)) {
+        if ($this->useTimestamps && $this->updatedField !== '' && ! array_key_exists($this->updatedField, $data)) {
             $data[$this->updatedField] = $date;
         }
 
@@ -857,11 +857,11 @@ public function insertBatch(?array $set = null, ?bool $escape = null, int $batch
                 // Set created_at and updated_at with same time
                 $date = $this->setDate();
 
-                if ($this->useTimestamps && $this->createdField && ! array_key_exists($this->createdField, $row)) {
+                if ($this->useTimestamps && $this->createdField !== '' && ! array_key_exists($this->createdField, $row)) {
                     $row[$this->createdField] = $date;
                 }
 
-                if ($this->useTimestamps && $this->updatedField && ! array_key_exists($this->updatedField, $row)) {
+                if ($this->useTimestamps && $this->updatedField !== '' && ! array_key_exists($this->updatedField, $row)) {
                     $row[$this->updatedField] = $date;
                 }
             }
@@ -929,7 +929,7 @@ public function update($id = null, $data = null): bool
             throw DataException::forEmptyDataset('update');
         }
 
-        if ($this->useTimestamps && $this->updatedField && ! array_key_exists($this->updatedField, $data)) {
+        if ($this->useTimestamps && $this->updatedField !== '' && ! array_key_exists($this->updatedField, $data)) {
             $data[$this->updatedField] = $this->setDate();
         }
 
@@ -1014,7 +1014,7 @@ public function updateBatch(?array $set = null, ?string $index = null, int $batc
                     $row[$index] = $updateIndex;
                 }
 
-                if ($this->useTimestamps && $this->updatedField && ! array_key_exists($this->updatedField, $row)) {
+                if ($this->useTimestamps && $this->updatedField !== '' && ! array_key_exists($this->updatedField, $row)) {
                     $row[$this->updatedField] = $this->setDate();
                 }
             }
@@ -1147,7 +1147,7 @@ public function replace(?array $data = null, bool $returnSQL = false)
             return false;
         }
 
-        if ($this->useTimestamps && $this->updatedField && ! array_key_exists($this->updatedField, (array) $data)) {
+        if ($this->useTimestamps && $this->updatedField !== '' && ! array_key_exists($this->updatedField, (array) $data)) {
             $data[$this->updatedField] = $this->setDate();
         }
 
diff --git a/system/Model.php b/system/Model.php
index e53c0aae4bd1..1873804a3c2d 100644
--- a/system/Model.php
+++ b/system/Model.php
@@ -435,7 +435,7 @@ protected function doDelete($id = null, bool $purge = false)
 
             $set[$this->deletedField] = $this->setDate();
 
-            if ($this->useTimestamps && $this->updatedField) {
+            if ($this->useTimestamps && $this->updatedField !== '') {
                 $set[$this->updatedField] = $this->setDate();
             }
 
diff --git a/user_guide_src/source/models/model.rst b/user_guide_src/source/models/model.rst
index db4ecd80b59d..6a2700520fd0 100644
--- a/user_guide_src/source/models/model.rst
+++ b/user_guide_src/source/models/model.rst
@@ -180,13 +180,13 @@ $createdField
 ^^^^^^^^^^^^^
 
 Specifies which database field to use for data record create timestamp.
-Leave it empty to avoid updating it (even if ``$useTimestamps`` is enabled).
+Leave it empty (``''``) to avoid updating it (even if ``$useTimestamps`` is enabled).
 
 $updatedField
 ^^^^^^^^^^^^^
 
 Specifies which database field should use for keep data record update timestamp.
-Leave it empty to avoid update it (even ``$useTimestamps`` is enabled).
+Leave it empty (``''``) to avoid updating it (even ``$useTimestamps`` is enabled).
 
 $deletedField
 ^^^^^^^^^^^^^