Fix opening an includedView after process creation

[ottosichert]

(See #1258)

@teosarca @metas-mk Please try out opening and closing all kind of modals and dialogs. Also you should notice that this PR fixes some minor issues such as losing selection and closing includedViews unintentionally when changing Table selection and back (works now)

[ottosichert]

I tried following steps:

• Open Picking Terminal (https://w101.metasfresh.com:8443/window/540345)
• Select first item
• Click quick action Pick
• Modal opens
• First item in table and includedView is already selected
• Click quick action Open HU selection window
• Select a TU in new includedView
• Uncaught Error: InvalidStateError: The connection has not been established yet

I this supposed to work?

• Open Picking Terminal (https://w101.metasfresh.com:8443/window/540345)
• Select first item
• Click quick action Pick
• Modal opens
• First item in table and includedView is already selected
• Click drop down of quick actions
• Click Pick to new HU
• Select item in Packvorschrift-Produkt Zuordnung
• Click Start
• Selected item appears below item in includedView

Is this correct?

[pablosichert]

Better: use

modal: {
    ...state.modal,
    ...initialState.modal
}

We can do a refactoring specifically to replace all Object.assigns.

[ottosichert]

I kept it for consistency, but you are right we should use this in all occurences instead as we use babel's object-rest-spread already