False positive "Add to your finder" suggestion after updating to 5.6.0

[printercu]

Hi!

I had rails 5.1.2 with bullet 5.5.1. I've tried to update rails to 5.1.6 and found that it's incompatible with old bullet version. I've updated bullet to the latest 5.7.5 and got an error:

     Bullet::Notification::UnoptimizedQueryError:
       user: max
       POST /buildings/5904/snapshot
       USE eager loading detected
         Building => [:details]
         Add to your finder: :includes => [:details]

In this place I don't have any collections finder, the simplified code is like:

resource = Building.find(id)
copy = resource.dup
copy.details = resource.details.dup
copy.save # bullet points here

I've tried different versions of bullet & rails and found, that this error appears in 5.6.0 with rails 5.1.2 (5.1.6 works only with bullet >= 5.6.1).

I've checked commits in 5.6.0, maybe the most related is bcb7b69

What else can I provide to help investigate this issue?