2020 SW external references

This is in 2020 SW.

I have assembly with few parts that are referencing sketch in one part.

The first time when I save as with references it saved correctly and updated references, but also updated the references in the original file. The second time I saved as it did not even asked me if I wanted to save with references or without.

What is going on with it, what am I doing wrong.

 

Regards,

 

Hubert