Document Property Promotion and Demotion is a Feature designed to synchronize specific metadata across documents ..
Unfortunately it breask CheckSums, such as MD5. That makes file integraty verification impossible
In SharePoint On Premise, PowerShell can disable it via:
$web = Get-SPWeb "http://test/sites/test_1/"
$web.ParserEnabled = $false
Please provide same function in SharePoint Online.
Not Bill Gates commented
The ability to enable / disable this in SPO is needed. Document Property Promotion and Demotion
Please fix this. When I upload the same document and overwrite the original document I lost all the metadata values!!