-z the only duplicates option for mimeo is not correctly implemented.

[kopardev]

Observations:

• duplicates are 2 and only 2 files are shown .. expectation is 3 files as original file should always be reported. This is likely when the original is owned by a different uid.
• -z should only filter files out which do not have duplicates .. not filter out the original file as well

Scenario:

• original file "a"
• copied to "b"
• "b" is then hardlinked to "c"
• "c" is then copied to "d"
• "d" is hardlinked to "e" and "f"

What will happen:

• "a" through "f" all will have the same top_hash and bottom_hash, same size and account for 3 inodes
• Hence, this should be 1 original + 2 duplicates even though you have 6 total files.
• basically duplicate 2 duplicate inodes account for 6 files... so dup_bytes should by X 2 while usurp should replace 5 files with hard links