pd: fix learning rate setting when resume #10529

Job	Run time
Test Python (1, 3.9)	30m 45s
Test Python (1, 3.12)	38m 44s
Test Python (2, 3.9)	30m 3s
Test Python (2, 3.12)	36m 26s
Test Python (3, 3.9)	29m 57s
Test Python (3, 3.12)	37m 42s
Test Python (4, 3.9)	30m 28s
Test Python (4, 3.12)	41m 3s
Test Python (5, 3.9)	30m 6s
Test Python (5, 3.12)	35m 28s
Test Python (6, 3.9)	30m 23s
Test Python (6, 3.12)	37m 7s
Combine and update integration test durations (3.9)	17s
Combine and update integration test durations (3.12)	9s
Pass testing Python	3s
	6h 48m 41s

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