The bug
When breaking a block and placing another block at the same place at the same time, the placed block appears to be placed incorrectly; the orientation is like it should be if it was placed on the destroyed block, but the block is placed at the coordonate of the destroyed block.
To reproduce
Switch into Creative mode
Build a pillar of blocks
Take stairs
Look at the topmost block of the pillar
Break and place the block at the same time
→ ❌ The stairs can be placed upside-down
Videos
[media][media][media]Linked issues
is duplicated by 5
relates to 1
Attachments
Comments 3
Affects 19w46b.
I think this is intended, at least for stairs. Since MC-154298 is working as intended, placing blocks by using this method is a feature. If someone wants to use this feature to place upside down stairs it should work.
Confirmed in 19w41a, by following what was done in the first linked video.