I don't know if this is intentional or because I'm not using the latest version, but there is a setting (itemSaver) listed here: settings that is missing.

If this is a bug, it would be great if that feature could be added for 1.16.5.
I used and checked the source code for this version.

Thanks for making a great mod! RIP my pickaxe.

That change was made after 1.6.3 was released so the next update (probably 1.17) will have it.

And you did not check the source code for

this version.

but for the latest stage of development
the file you are looking for is this one

to see what is included in a specific release, you can click on the big v*.** heading to view the commit the release was made on

Ok thanks! I'll know for next time.
(I meant I downloaded the "sourcecode.zip" file from that link to see if if there was a different name for the itemSaver setting in that release, I should have clarified sorry. When searching for the setting itself, I was looking at changes for the latest stage of development instead.)