Bug 1842254

Description of problem (please be detailed as possible and provide log
snippests):
I'm uploading the same object three times to the same bucket. However, when I enter the object's overview panel, "Original Size" and "Actual Used Storage" are the same size for all three copies - even though "Raw Usage" and "Data Optimization" stats are correct.

Another example - I upload enwik8 which should be compressed to about 54MB/s with Snappy (which it did) and three duplicate files (each weighing 43MB).
NooBaa claims it reduced 128 MB, while it should be 140 - 43*2 (duplicate files) + 54 (enwik8 post-compression)

Version of all relevant components (if applicable):
NooBaa 5.4.0-93d9738
OCS 4.4.0-428.ci 
OCP 4.4.0-0.nightly-2020-05-25-020741

Does this issue impact your ability to continue to work with the product
(please explain in detail what is the user impact)?
No

Is there any workaround available to the best of your knowledge?
No

Rate from 1 - 5 the complexity of the scenario you performed that caused this
bug (1 - very simple, 5 - very complex)?
2

Can this issue reproducible?
Yes

Can this issue reproduce from the UI?
No

If this is a regression, please provide more details to justify this:


Steps to Reproduce:
1. Create a bucket called `duplicates`, upload the same object three times under different names
2. Create another bucket called `compressed-and-duplicates`, upload the same object three times, and upload an `enwik8` test file
3. See the phenomena described above


Actual results:
Stats aren't right/don't add up

Expected results:
Stats are right and the numbers do add up

Additional info: