Service levels selection is not carried over between dashboards

[mykaul]

Just as it carries over specific date/time range when moving between dashboards, I'd expect it to keep the service levels I select - but it just goes to sl:default
For example, in the overview I've selected sl:default + sl:ingest. When I moved to the detailed dashboard, I got back to only sl:default.
(Version 4.6.2).