A failure while creating a configurable product: «URL key for specified store already exists»

[dmitrii-fediuk]

Surely, while autogenerate simple variants of a configurable product the system need to check whether an autogenerated url key conflicts with an already existed product.

https://mage2.pro/t/107

[piotrekkaminski]

internal issue MAGETWO-44058

[tanya-soroka]

@dfediuk the fix of the issues is available. I am going to close this ticket.
Feel free to reopen if you have any comments.