Vuex Registering Nested Modules before devtools init

[robertmoura]

Version

5.0.6

Browser and OS info

Chrome 73 / Windows 10

Steps to reproduce

Register a Vuex module with nothing but nested modules.

What is expected?

The nested modules are registered to state on the dev tools.

What is actually happening?

The nested module aren't recognized by the dev tools.

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I've created a sandbox for this issue: https://codesandbox.io/s/q8qw1vxp96

To reproduce the errors I'm encountering with this bug:

1. Go to https://q8qw1vxp96.codesandbox.io
2. Click Load Module
3. and open the devtools onto the Vuex tab

[martynchamberlin]

There's a whole team of us that are in the throes right now because of this issue. Having to resort to console.log statements to be able to see what's going on in our store. Would love to get this fixed!