"Lorem Ipsum" extension doesn't work in SVG2 flowed text

Steps to reproduce:

• create a text box (flowed text)
• invoke "Lorem Ipsum" extension

What happened?

Extension creates an invisible sub-layer, flowRoot####, in Layer 1. The XML is there but I can't see it rendered.

What should have happened?

Extension should create a visible text box full of "greek text".

Inkscape Version and Operating System:

• Inkscape Version: 1.0beta2 (074b463, 2020-02-02),
• Operating System: macOS
• Operating System version: 10.12.6 (16G2136)

Attached (even though you can't see it): lorem_ipsum.svg