Fix selections reverting after quick clicks

Changing a measurement selection quickly — select, deselect, select again — could end up in the wrong state a few seconds later, showing no results until the page was reloaded.

• Fixed rapid filter and selection changes occasionally reverting to an earlier state (a race in the URL state library, fixed upstream and upgraded)
• Fixed measurement names containing a comma breaking multi-selection entirely
• Selecting a measurement now applies in a single step instead of two, removing a flicker