Fix Error "round(): Argument #1 ($num) must be of type int|float, str…

…ing given"

PlaceholderFilterLoader->load() must not Thumbnail if there is no dimension.

components/EnhancedImageAssetBundle/src/lib/Imagine/Filter/Loader/PlaceholderFilterLoader.php

@@ -40,9 +40,11 @@ public function load(ImageInterface $image, array $options = []): ImageInterface
             }
         }
 
-        if ($origWidth > $width || $origHeight > $height) {
-            $filter = new Thumbnail(new Box($width, $height), ImageInterface::THUMBNAIL_OUTBOUND);
-            $image = $filter->apply($image);
+        if ($width && $height) {
+            if ($origWidth > $width || $origHeight > $height) {
+                $filter = new Thumbnail(new Box($width, $height), ImageInterface::THUMBNAIL_OUTBOUND);
+                $image = $filter->apply($image);
+            }
         }
 
         $image->strip();