generate_functional_directed_moves: Keep the identity move; need it for minimal_no_covered_interval()
Only warn about the discontinuous case
Fix logging level in testcases
Add failing test case lift_of_minimal_has_uncovered_interval
uncovered_intervals_from_covered_intervals: Add testcase
Enable sage_input for coho intervals, FastLinearFunction, FastPiecewise
lift_of_minimal_has_uncovered_interval: Fix doctest
Add FIXMEs