fix(train): allow zero-step training with bias adjustment#5477

wanghan-iapcm merged 7 commits into

deepmodeling:masterdeepmodeling/deepmd-kit:masterfrom

njzjz-bothub:fix-4988-zero-step-trainingnjzjz-bothub/deepmd-kit:fix-4988-zero-step-trainingCopy head branch name to clipboard