Filters panel is not showing when assigned filter is missing its index

[z-vr]

Kibana version: 5.6.0

Elasticsearch version: 5.6.0

Server OS version: macOS 10.12.2

Browser version: Chrome 60

Browser OS version: macOS 10.12.2

Original install method (e.g. download page, yum, from source, etc.): Homebrew

Description of the problem including expected versus actual behavior:

Filters panel does not show in Discover tab when a saved search has a filter added which is pointing to a missing index.

Steps to reproduce:

1. Create an index.
2. Search for some data and add a filter.
3. Delete the index.
4. Create a new index with a different ID.
5. Edit search saved object and update its index ID in kibanaSavedObjectMeta.searchSourceJSON, but don't update index ID in filters.
6. Open the search and don't see filters panel, be confused.

Errors in browser console (if relevant):

commons.bundle.js?v=1:38 Error: Could not locate that index-pattern (id: AV58hPtSCNEdHp4Q6zj6), [click here to re-create it](#/management/kibana/index?id=AV58hPtSCNEdHp4Q6zj6&name=)
    at updateFromElasticSearch (kibana.bundle.js?v=1:27)
    at kibana.bundle.js?v=1:27
    at processQueue (commons.bundle.js?v=1:38)
    at commons.bundle.js?v=1:38
    at Scope.$eval (commons.bundle.js?v=1:39)
    at Scope.$digest (commons.bundle.js?v=1:39)
    at Scope.$apply (commons.bundle.js?v=1:39)
    at done (commons.bundle.js?v=1:37)
    at completeRequest (commons.bundle.js?v=1:37)
    at XMLHttpRequest.xhr.onload (commons.bundle.js?v=1:37)

[Bargs]

Dupe of #7767
Working on a fix in #13916