Issue when merging llama with diff to generate English policy model

Hi There,

I am trying to merge llama with diff, but get the error "Naive integrity check failed". After checking the code "merge_weight_en.py", I found that the code in line 150 is written as "fill_value = 0", which causes the failure of integrity check in line 165. Is this a bug? How to fix it?

Thank you 