                 nibTextLabel = newValue
             } else {
                 IBLog.write("overridingTextLabel = nibTextLabel")
-                if let source = overridingTextLabel,
-                    let destination = nibTextLabel
-                {
-                    destination.copyNonDefaultProperties(from: source)
-                }
                 overridingTextLabel = nibTextLabel
                 super.textLabel?.text = nil
             }

                nonNilLabel.text = "non nil"
                overridingDetailTextLabel = nonNilLabel
            } else {
                IBLog.write("overridingDetailTextLabel = nibDetailTextLabel")
                if let source = overridingDetailTextLabel,
                    let destination = nibDetailTextLabel
                {
                    destination.copyNonDefaultProperties(from: source)
                }
                overridingDetailTextLabel?.text = nil
                overridingDetailTextLabel = nibDetailTextLabel
            }
            IBLog.write("detailTextLabel set, done", indent: -1)

                nibImageView = newValue
            } else {
                IBLog.write("overridingImageView = nibImageView")
                overridingImageView = nibImageView
                overridingImageView?.image = super.imageView?.image
                super.imageView?.image = nil
            }
            IBLog.write("imageView set, done", indent: -1)
