revlog.py: always return tuples from parents and parentrevs There's at least one place doing parentrevs(rev) != (rev-1, -1), which is always true with revlog v0, since parentrevs returns a list in this case.

     1

# should print nothing

     2

# should print ? b/x

     3

? b/x

     4

# should print A b/x

     5

A b/x

     6

# should forget b/x

     7

forgetting b/x

     8

# should print nothing