Fixed CachePosts command
Fixed CachePosts command

`$done` callable was not written to follow the `$next` signature.

weierophinney/mwop.net,vrkansagara/mwop.net,vrkansagara/mwop.net,weierophinney/mwop.net,weierophinney/mwop.net,weierophinney/mwop.net,vrkansagara/mwop.net,vrkansagara/mwop.net