Not sure.
Not sure.
Revert d8e0f74..ce49428

This rolls back to commit d8e0f74dfb9ea5b233b5b3da649f7d809426446e.
Fixed everything.

The key was ignoring spurious null transitions.
Fixed indentation error.

I fixed an error where one of the blocks of code didn’t indent
correctly. See lines 421 - … in the original code, near the original
definition of all_distinct. Basically, I wasn’t handling certain
histories correctly. *But*, this still doesn’t work with the current
settings for L_max with sample1.
Minor modifications.