[MC-112441] /fill's "keep" tag doesn't work with air

How to reproduce:
1. Select an area with fill that contains blocks and air
2. Type: /fill <x> <y> <z> <x> <y> <z> <block you wish> <data tag> keep
This will not replace other blocks with the block. Only air.

Comments 3

marcono1234 2017-01-12T19:34:01Z

That is what keep is supposed to do, it keeps the existing block unless it is air, or am I understanding your report wrong?

Wither 2017-01-12T20:07:50Z

Ok, then I will go to the subreddit to suggest multiple fill tags... Is there a way to delete or close the bug?

CDES5 2017-01-12T20:16:43Z

WAI required.