SameCodes assumes the cache is always correct

[Resisty]

In geo.py, SameCodes._cached_same_codes() returns True regardless of the contents of the cache file. After a failed run, the cache file existed on my file system but was empty. Subsequent attempts all failed because no SAME codes were available.

In addition to checking if the file exists, please ensure that the cache also has useful information and if not, reload().

Thanks!

[zebpalmer]

Thanks for the report. This is ancient code, surprised it still works at all. I am planning on giving it some TLC early next month. Revamping the cache logic is on the list.