Cloudron has `<none>` docker images taking up space

[Lanhild]

While browsing through the images installed on my instance with docker images, I found two images with the <none> tag and repository. These take up ~3GB each. What are they?

[girish]

@Lanhild do they go away if you run docker image prune -a ?

[Lanhild]

@girish Seems like that was it. Thanks!

[robi]

@girish I recall you making that run automatically..

Should it run more frequently?