Attributes: Greater than (gt) does not work

[Innders]

To reproduce

Steps to reproduce the behavior:

1. Go to /settings/attributes
2. Edit or create new attribute
3. Set gt value to 0 or 0.5.
4. Do not set ge

Expected behavior

When setting the value in the scope, anything below or equal to gt should throw an error. ge, lt, le seem to work.

Discovered whilst doing Attributes: Min and max values