When using the Gallery block - slider style into a post, there are a couple of bugs that appear:

• photo credits: the photo credits does not get pulled but the field is also not available in the backend
• resizing size of gallery: if a photo is smaller in size than the others, it will also modify the gallery, this will not stay fixed

eg: https://k8s.p4.greenpeace.org/gutenberg/story/23743/gallery-block-test/ - check 

Gallery block

Tasks:

• Add credit field when adding an image from library in Gutenberg
• Fix the copyright symbol to display properly in slider
• Retest about the sizes