Bug in subtree copy for parsing

[rlnsanz]

flor/flor/interface/input/execution_tracker.py

Line 80 in 2286a9d

root_dir = os.path.dirname(inspect.getsourcefile(f))

Copy tree rooted at common ancestor of all invocable Flor-decorated functions and the active Flor Context.

Scenario:

• flor.Context() in ~/bin/driver.py
• main() in ~/src/code/main.py

Then must copy (relevant) subtree rooted at ~.