It seems the idGoal parameter got lost for the sparklines. Or maybe it never worked....
Seems all related tests are still passing. That actually indicates that our UI tests are not that good. At some point we maybe should consider creating a new & bigger dataset for our UI tests, so there is also some historical data, that can be shown in the sparklines.
But doing that might be a bit out of scope for this fix. Guess we should keep that in mind for Matomo 5 maybe.