[MC-182523] Spawners and leaves doesn't show back faces

Spawner and leaves faces only render when look from front, the back is invisible, cause a ugly effect.

Linked issues

violine1101 2020-05-05T11:11:32Z

Please attach some screenshots.

violine1101 2020-05-05T11:23:39Z

Thank you for your report!
We're actually already tracking this issue in MC-169969, so I resolved and linked this ticket as a duplicate.

If you would like to add a vote and any extra information to the main ticket it would be appreciated.

If you haven't already, you might like to make use of the search feature in the future to see if the issue has already been reported.

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