[Therion] join two scraps to same end of other srap

[Bruce Mutton]

> It is because join commands do not chain. It means

> join a b
> join b c

> does not work :(

> What works is

> join a b c

> where a, b, c are points or lines, but not scraps. It is nowhere
> written in thbook. It is quite long time in the TODO list to do
> chaining for join commands, but it was not so urgent yet.

> So the only way how to solve your join problem, is to name lines or
> add some invisible points and join these scraps manually - as I did it
> with your files.


Thanks Stacho
I suspected that might be the case, but just wanted to make sure I wasn't
making unnecessary work for myself.
Bruce