Starting with the release of Strategy ONE (March 2024), dossiers are also known as dashboards.
In Strategy, you can choose to allow or disallow joins across datasets based on unrelated common attributes.
See this difference in Joins Across Datasets and Document/dashboard best practice.
You can allow joins across datasets based on unrelated common attributes in a single Dossier or for all of the documents. However, the setting is not available for an individual document. It has to be enabled for the entire project.
To have values in an individual document resemble the values calculated with the Allow joins across datasets based on unrelated common attributes setting enable, refer to the following steps:
The following screenshots are examples of the application of the workaround:

The results from the document, which was created from a dossier, are accurate. The results are identical to the results in a dossier with the Allow joins across datasets based on unrelated common attributes setting on.