Tests

fix: fix sparse cost hessian #2660

Job	Run time
Tests (lts, Downstream) / Tests - Downstream	13m 13s
Tests (pre, Extensions) / Tests - Extensions	50m 29s
Tests (pre, FMI) / Tests - FMI	30m 55s
Tests (1, SymbolicIndexingInterface) / Tests - SymbolicIndexingInterface	23m 55s
Tests (1, FMI) / Tests - FMI	30m 11s
Tests (lts, InterfaceII) / Tests - InterfaceII	55m 49s
Tests (pre, Initialization) / Tests - Initialization	19m 11s
Tests (pre, SymbolicIndexingInterface) / Tests - SymbolicIndexingInterface	23m 47s
Tests (lts, SymbolicIndexingInterface) / Tests - SymbolicIndexingInterface	15m 30s
Tests (pre, RegressionI) / Tests - RegressionI	17m 13s
Tests (lts, Extended) / Tests - Extended	11m 29s
Tests (1, Downstream) / Tests - Downstream	22m 0s
Tests (1, InterfaceI) / Tests - InterfaceI	49m 1s
Tests (1, InterfaceII) / Tests - InterfaceII	1h 12m 5s
Tests (1, RegressionI) / Tests - RegressionI	15m 58s
Tests (lts, InterfaceI) / Tests - InterfaceI	33m 3s
Tests (lts, FMI) / Tests - FMI	17m 9s
Tests (1, Extended) / Tests - Extended	21m 17s
Tests (lts, RegressionI) / Tests - RegressionI	8m 32s
Tests (lts, Extensions) / Tests - Extensions	30m 7s
Tests (pre, InterfaceI) / Tests - InterfaceI	51m 8s
Tests (pre, Extended) / Tests - Extended	20m 1s
Tests (pre, InterfaceII) / Tests - InterfaceII	51m 5s
Tests (pre, Downstream) / Tests - Downstream	22m 11s
Tests (lts, Initialization) / Tests - Initialization	10m 16s
Tests (1, Extensions) / Tests - Extensions	45m 55s
Tests (1, Initialization) / Tests - Initialization	19m 25s
	13h 0m 55s

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