Issue with the `insertBlock` command on the latest `trunk` version of WordPress

[dkotter]

Describe the bug

In a recent test (see here) I utilized the insertBlock command to insert an Image block. This worked fine on WP 5.7 and WP latest but failed on WP trunk.

The error message we got was Expected to find element: .wp-block[data-type="core-image"], but never found it. But looking at the image that was provided, it seems the block editor had an error:

I was not able to reproduce the same issue locally but I'm assuming this is probably related to the changes made in #89.

Note I changed the above linked test to get around the issue but if this is a larger issue around WP 6.2, I'm assuming more tests will start to fail once that is released.

Steps to Reproduce

I couldn't reproduce while running locally but see the link I gave above to view a test run on GitHub that failed

Screenshots, screen recording, code snippet

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Environment information

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WordPress information

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