fix: reinit! on forwarddiff cache (#491) #145

Job	Run time
downgrade (1.10, core)	11m 27s
test (1.10, ubuntu-latest, core)	11m 25s
downgrade (1.10, adjoint)	8m 35s
test (1.10, ubuntu-latest, adjoint)	8m 36s
downgrade (1.10, alloc_check)	8m 31s
test (1.10, ubuntu-latest, alloc_check)	8m 37s
test (1.10, macos-latest, core)	5m 56s
test (1.10, macos-latest, adjoint)	6m 0s
test (1.10, macos-latest, alloc_check)	6m 39s
test (1.10, windows-latest, core)	12m 33s
test (1.10, windows-latest, adjoint)	10m 0s
test (1.10, windows-latest, alloc_check)	9m 47s
test (1, ubuntu-latest, core)	20m 2s
test (1, ubuntu-latest, adjoint)	15m 46s
test (1, ubuntu-latest, alloc_check)	14m 58s
test (1, macos-latest, core)	8m 40s
test (1, macos-latest, adjoint)	9m 32s
test (1, macos-latest, alloc_check)	10m 12s
test (1, windows-latest, core)	19m 36s
test (1, windows-latest, adjoint)	16m 57s
test (1, windows-latest, alloc_check)	16m 50s
	4h 0m 39s

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