Part of #378; copied from https://github.com/backdrop/backdrop-issues/issues/2887#issuecomment-405...
I was playing around with D8 core and contrib media-related modules, and this specific feature drew my attention:

...so, media types have this "Field mapping" feature (the screenshot above is for the "Image" media type), which allows you to store metadata information to entity fields. I know we are a long way from anything like that (or are we?), and I don't wanna derail this issue here, but I thought that we could perhaps be using this to be automatically storing EXIF data to such a field (that we could be hiding by default). This could help us retain the EXIF data across any edit operations I believe.
Just a thought.
Recent comments
@yorkshirepudding, In the end I fixed it by deleting the config/active folder contents, copying the config/staging/ files into config/active, importing the database again and clearing the caches...
Importing the staged config throws an error: another field with the same name already exists
Thanks, I have to go out now, I will try later on and report back
Importing the staged config throws an error: another field with the same name already exists
Hi Francis. Yes, what config do you have in staging for it? You might have configs like: field.field.field_video_embed field.instance.node.page....
Importing the staged config throws an error: another field with the same name already exists