Site crashes with Error: Call to a member function transformDimensions() on null in Drupal\rift\RiftPicture->getImageDimension() (line 345 of modules/contrib/rift/src/RiftPicture.php) after upgrade to 1.4.0

This happens when invalid fallback_transform is used.

Reported in 1.4.0 and fixed in 1.4.1

Automatically closed - issue fixed for 2 weeks with no activity.