Adding empty string split causes consistency check to failed for merge command

[Dong Zhou]

Hi all,

I noticed that adding an empty string to as a split will cause merge
command failed the consistency check.

2018-03-01 19:58:46,724 [state.MergeStats] DEBUG: chopped 442 v.chopped 441
unassigned 442 v.unassigned 441 verify.total 441
2018-03-01 19:58:46,724 [state.MergeStats] INFO : Merge consistency check
failed 1b<<

Also, is there a way to remove an unwanted split from table. Merge is one
way, but with empty string does not work.

Cheers,

-Dong Zhou