Required code editor field causes error even if not empty

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Describe the bug When there are more than one code editor fields and they are all required, the first one causes an error on page save, even if it contains a value

To Reproduce Create a field group and assign it to pages Add two (or more) code editor fields and set them as required Create a page, write something inside both the code editor fields Save the page The first code editor field causes an error

Expected behavior The page should be saved without errors, as all required fields contain a value

WordPress & ACF WordPress version: 5.8.3 ACF Pro version: 5.11.4 ACF Extended: 0.8.8.7