If actual dimensions are smaller than soft limits, use those

Closes #3401213

src/EventSubscriber/AutomatedCrop.php

@@ -51,6 +51,15 @@ class AutomatedCrop implements EventSubscriberInterface {
     $image = $event->getImage();
     $hard_limit = $crop_type->getHardLimit();
     $soft_limit = $crop_type->getSoftLimit();
+
+    if (!empty($soft_limit['width']) && $soft_limit['width'] > $image->getWidth()) {
+      $soft_limit['width'] = $image->getWidth();
+    }
+
+    if (!empty($soft_limit['height']) && $soft_limit['height'] > $image->getHeight()) {
+      $soft_limit['height'] = $image->getHeight();
+    }
+
     $configuration = [
       'image'        => $image,
       'min_width'    => isset($hard_limit['width']) ? $hard_limit['width'] : $soft_limit['width'],