\Magento\Framework\Image\Adapter\Gd2::crop() does not free the previous GD image resource _imageHandler with imagedestroy before creating a new one

[dmitrii-fediuk]

https://mage2.pro/t/297

Similar to #2694, #2696, #2712, #2728, #2743, #2754

[andimov]

Could you please add the description of steps, actual result and expected result to this ticket?
It will help other community members to find this problem when they use GitHub, which is, unfortunately, impossible when the full description is placed on the external resource.

[andimov]

According to contributor guide, tickets without response for two weeks should be closed.