Single Product Block > Product Summary and Title not aways rendering with the correct context depending on their position in the editor

[nefeline]

Describe the bug

The Product Summary and Product Title blocks are not always rendered with the correct context in the editor when used as inner blocks of the Single Product block.

To reproduce

Steps to reproduce the behavior:

0. Make sure you have the Gutenberg plugin disabled
1. Create a new Post
2. Add the Single Product block and save the post: notice how the content for the product summary block is rendered without any problems.
3. Now go back to the editor and move the Product Summary block to the last position, as demonstrated in the screenshot below:

5. Save the post and go to the front end: notice the summary is not displayed at all.

Expected behavior

Both the Product Summary and the Product Title blocks should be rendered without any problems, independent of their position within the editor.