[Forwardport] Grid filtration doesn't work for mysql special characters

[serhii-balko]

Original Pull Request

#12749

Manual testing scenarios

1. Create several products
2. Open product grid
3. Open filters block
4. Enter % or _ to name field
5. Do filter

###Expected result

Grid shows only products with the symbol

###Actual result

Grid shows all products

Contribution checklist

• Pull request has a meaningful description of its purpose
• All commits are accompanied by meaningful commit messages
• All new or changed code is covered with unit/integration tests (if applicable)
• All automated tests passed successfully (all builds on Travis CI are green)

[ihor-sviziev]

Hi @serhii-balko,
Thank you for your work. Unfortunately we have older PR #13780 with the same changes, so we can't accept your one.

I'll mark your PR as duplicate

[magento-engcom-team]

Hi @ihor-sviziev, thank you for the review.
MAGETWO-88260 has been created to process this Pull Request

[ihor-sviziev]

@serhii-balko Looks like testing was started, so it's better to accept your PR. I'm re-opening it

[magento-engcom-team]

Hi @ihor-sviziev, thank you for the review.
ENGCOM-591 has been created to process this Pull Request