Fix log spam on invalid invalid query

[Wumpf]

What

• Resolves: certain blueprints cause spam when selecting space view: "Could not find root data result for Space View SpaceViewId(...) #5568

Fixes recent regression of getting Could not find root data result for Space View SpaceViewId(2e0664ef-251a-4813-9eae-f728818bf507) spamed when editing the query expressions. E.g. this would trigger when changing a query from + $origin/** to + $origin/*

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[jleibs]

query doesn't even need to be valid... just empty I think is sufficient to hit this

[jleibs]

Reviewing this led me to instead implement: #5571, which I think is the preferable fix since it avoids this query (that didn't need to be there) all together.

This is important for still being able to edit the visible history on an empty space view.

[Wumpf]

Closing in favor of that one