Filters can't filter ranged from 0

[Corefix]

Preconditions

1. Community Version 2.1.2
2. PHP 7.0.10
3. Some products already in Magento with products with quantity 0 and products without

Steps to reproduce

1. Go to Magento admin
2. Go to Products > Catalog
3. Select Filters
4. Enter in Quantity from 0 to 0
5. Press apply filters

Expected result

1. I would expect to see all products with quantity of 0 to be displayed

Actual result

1. All products are displayed

Comment

I have traced the problem back to the following class:
\Magento\Ui\Component\Filters\Type\Range

and the method:
applyFilterByType

I'm not sure why the condition in it is how it is, and thats why I didn't want to just do a PR fixing this.

[miakusha]

Hi @Corefix , thanks for report
We've created internal ticket MAGETWO-60044 to address this issue.

[okorshenko]

@Corefix Thank you for reporting the issue
@giacmir thank you for fixing this issue in PR: #8776