Have you noticed that when uploading a new documents in a document library, the connected workflows do not trigger?
This behavior can be used to “sneak” in changes in a documents metadate without triggering new versions or connected workflows.
The trick is simply to load the page with the parameter “&Mode=Upload” in the URL:
[your root address]/test/English/DocumentLibrary/Forms/EditForm.aspx?ID=1&Mode=Upload
Make the changes and click “OK”. The changes are merged into the current version and no workflows are triggered!
Note: “Modified” and “Modified By” is updated.