Different image name between listContainers() and docker inspect <running container>

[Kos-M]

Hello , im just curious if this is on purpose or found something here..
The use case is the following:
i have a running container with image name test_image.
While have that running ,i m building a new version of the image with updates.

dockerode reports that image in running container as
Image: 'sha256:12497d04d69de618dfc800.....' ( before new build was test_image )

while docker inspect
reports it as test_image .

I understand the when we are creating a new version of an image docker tags the new one with the name , but i think we are loosing some info there.

Is that the desired behavior on this scenario ?