This is used in feature-specific contexts for SpaceList and
ShareToSpaceFlyout components, so the rendered avatar for a space is in
a disabled state if the feature is disabled in that space.

…ient

Add support for `resolve` method to the public SOC client abstraction.
This was overlooked in Sharing Saved Objects Phase 2 because it does not
use the same type definitions as the server-side SOC client.
Also added the `namespaces` field to the SimpleSavedObject type, which
is always present as of several releases ago.

A user is authorized to change a legacy URL alias if they are have
privileges to modify the target object.

TODO: add an HTTP route for this API

Before, only the target object would be updated.

When sharing an object, we include all of its references *except* for
tags. Note, this does not preclude tags from being shared directly.

These were broken after the latest merge from master.