Well, I would describe this differently. If an application is using gnome-keyring, there are some restrictions or usage pattern a user should know. And in this case of chromium or chrome, the described symptom is exactly as designed and intended. Or to formulate it nicely, the user is not using the application in the sense it is desigend for. So that's not a bug.
But we can certainly help mx linux user and describe how to use it properly. A general quick "leave password empty.." kind of answer, does not always fit to the correct usage pattern of an application.