Cannot attach files to a singleton model until update the record

Support Developer
1

Hi,
I am working on a singleton model to make a configuration record, as it is usual on tryton (tryton 6.0). At the time when I install the module where it is defined and try to attach a file to it, it gaves me an error saying:

A value is required for field “Resource” in “image.jpg” of “Attachment”

I could “avoid” the error doing a minimal modification on the record, saving it, and after that attach the file without an error

2

Please fill an issue.
As the client can not distinct between an actually saved singleton and a pseudo-record with default value, I guess we need to tune the Reference field to accept any record pointing to a singleton.