ZeroDivisionError on transform path

Steps to reproduce:

I received a user file which contains a rectangle with an ry value of 1.6217518e-12

Run inkex.Path(rect.get_path()).transform(inkex.Transform('translate(10, 0)')) on rect1 in the given file (can be any transform).

What happened?

The extension returns a ZeroDivisionError:

[...]/inkex/paths.py", line 1135, in transform
    rx_ = 1.0 / sqrt(half + delta)
ZeroDivisionError: float division by zero

Edit: with newer inkex versions:

[...]/inkex/paths/arc.py", line 321, in transform
    rx_ = 1.0 / sqrt(half + delta)
ZeroDivisionError: float division by zero