Unsweepable Objects (SF Issue)

[tanabi]

This isn't a server bug, really, but a bug in the standard sweep
program.

It is possible to make a Thing object be unsweepable, due to the
parent loop checks.

Shal'Nath pages, "To make the new unsweepable object.. Just
make three objects, obj1, obj2, obj3. Make obj2 pick up obj1. Set
obj3's home to obj1. And now, here comes the tricky part. ;)
Make obj3 pick up obj2." to you.