[Fix] Fix fuse derivative corner case and add UT#748

Merged

zhiminzhang0830 merged 3 commits intoPaddlePaddle:developfrom HydrogenSulfate:fix_fuse_grad_case

Jan 11, 2024

+92-13

Commits on Jan 10, 2024

fix coner case for FusedDerivativeNode is placed at the end of nodes group
HydrogenSulfate
committed

Commits on Jan 11, 2024