Anytime when I create a package in a package and create classes inside this subpackage before adding classes to the top-level package, the packages are always merged together.
For example, I created a package socialand a package contactinside. After adding several classes to the package contact , Android Studio automatically merged them together as:

Now, if I right-clicked to create another class, it just puts it in the package contact.
How can I "un-merge" pakcags allow classes to be placed in a package social?
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