Bug in V6 with inserted files and "Save textures" setting

V6 makes massive files if inserted files have textures and the default setting of “Save textures” is on.
In other words: A master file shall NOT store the textures of linked files.

This is easy to duplicate:

1- make a new file and insert an image.
2- save files as XREF-image (or something else ;))
3- make a new file and insert the XREF-image file as LINKED
4- don’t add anything else and save file as MASTER

5- check MASTER file’s file size and see that it rather big.
6- now go back and SaveAs the MASTER file and toggle off “Save textures”
7- check file size and see how small the file now is.