Auto-complete puts the mode "filtered" in the command line when the correct syntax is "filter".
MC-60894
Clone Command Incorrect Mode
Resolved
Invalid
0
(Unassigned)
Unconfirmed
clone, command, filter, filtered, mode
Minecraft 14w27b
Retrieved
No, it's correct.
You have to specifiy the second mode
normal|forced|moveand the filter block name / data value afterfiltered.e.g.
/clone ~ ~ ~ ~-3 ~3 ~-3 ~ ~ ~-10 filtered force stone 0(screenshot was done after doing the example}}