First Super Table row is not cloned/copied

[gglnx]

Describe the bug

When cloning a Matrix block with a Super Table field, the first Super Table row is not copied/cloned, while all others are.

Steps to reproduce

1. Create Matrix block with a Super Table field
2. Fill two rows
3. Try to copy/clone

Craft CMS version

4.4.6.1

Plugin version

2.0.0

Multi-site?

No response

Additional context

No response

[engram-design]

What sort of fields do your Super Table fields contain? Here's a very simple setup which is working.

CleanShot.2023-04-12.at.13.54.25.mp4

[gglnx]

A Hyper and an Icon Picker field.