I have known this bug when I was testing the latest release. But unfortunately it cannot be fixed easily. I tried to fix another bug in v 0.0.6(#8 ), and I found there's some logical issues with obsidian "drag & drop" API callback.
Obsidian first starts a pending file operation(which contains target file path) , and then invoke the callback in my plugin.
This is why changing settings doesn't affect the first copy operation.

Would it be possible to move the file when your plugin is called?

Would it be possible to move the file when your plugin is called?

It makes the plugin more complicated. If you use ctrl-c & ctrl-v to copy files, everything works fine.

Sure, but that is not what one expects when using your Plugin. Usecase it dropping the file into a note and forget about it without having to think of moving it around manually.
Nevertheless, thanks for your work and explanations.

If obsidian fix it, I will update my plugin in the first time.

Using relative path(start with "./") works fine. It's a bug that is hard to fix because of obsidian's weird behavior.