Steps to reproduce:

Create a project with the 3D URP template in 7000.0.0a7
Open Window > Package Manager
Select Unity Registry in the left panel
Select Localization in the package list
Click Install
Confirm the installed version reads 2.0.0
In the Project window, right-click the Assets folder
Select Create > Localization > Addressable Group Rules (Default)
Click Save in the save dialog
Select the created asset in the Project window
Count the resolvers shown in the Inspector
Open the same .asset file in a text editor
Search it for m_ModuleTablesResolver

Actual results: The Inspector shows four resolvers: Locale Resolver, String Tables Resolver, Asset Tables Resolver and Asset Resolver. The asset serializes a fifth, m_ModuleTablesResolver, which decides the Addressables group the built-in localization module's resource tables are placed in and defaults to "Localization-Resource-Tables-{LocaleName}". It cannot be viewed or changed in the Inspector, and the Addressables manual page does not list it among the group rules.

Expected results: The Inspector shows every rule the asset holds, and the manual lists it with the others.

Reproducible with versions: 2.0.0(7000.0.0a7, 6000.7.0b4)

Not reproducible with versions: 1.5.13(6000.6.4f1) - the resolver does not exist there

Tested on (OS): macOS 27.0

Note: Create > Localization > Addressable Group Rules (Single Group) sets all five, so the rule is first-class in code; only the Inspector and the manual omit it.