Minecraft 1.8-pre1, Minecraft 1.8
To reproduce: Focus your crosshair on a block, then type in any of the following partial commands and attempt to tab complete the following coordinate arguments:
- /replaceitem block
- /stats block
- /worldborder center
Since /tp has two ways to be formatted, it might not be desirable to add tab-completing for coordinates in this case, but for completeness' sake:
- /tp @p
will not allow tab-completing coordinates, likely because the destination player argument could follow just as well as coordinates.