Site Editor: Error in browser console when saving entities

[t-hamano]

Description

In the Site Editor, if you make changes to a template (perhaps even to a template part, etc.) and press the Save button, an error message will appear in the browser console.

The 'useSelect' hook returns different values when called with the same state and parameters. This can lead to unnecessary rerenders. 
    at EntitiesSavedStates (http://localhost:8888/wp-content/plugins/gutenberg/build/editor/index.min.js?ver=5dc83edfc359b8a42885:3430:3)
    at _EntitiesSavedStates (http://localhost:8888/wp-content/plugins/gutenberg/build/edit-site/index.min.js?ver=41aa4ca25b45c449df04:16046:3)
    at div
    at NavigableRegion (http://localhost:8888/wp-content/plugins/gutenberg/build/edit-site/index.min.js?ver=41aa4ca25b45c449df04:30470:3)
    at SavePanel (http://localhost:8888/wp-content/plugins/gutenberg/build/edit-site/index.min.js?ver=41aa4ca25b45c449df04:16061:65)
    at div
    at div
    at Layout (http://localhost:8888/wp-content/plugins/gutenberg/build/edit-site/index.min.js?ver=41aa4ca25b45c449df04:12142:100)
    at RouterProvider (http://localhost:8888/wp-content/plugins/gutenberg/build/router/index.min.js?ver=4b462bf59ee67d7d784b:178:3)
    at GlobalStylesProvider (http://localhost:8888/wp-content/plugins/gutenberg/build/edit-site/index.min.js?ver=41aa4ca25b45c449df04:6859:3)
    at SlotFillProvider (http://localhost:8888/wp-content/plugins/gutenberg/build/components/index.min.js?ver=9196abfde57f228d14ea:56866:3)
    at SlotFillProvider (http://localhost:8888/wp-content/plugins/gutenberg/build/components/index.min.js?ver=9196abfde57f228d14ea:57283:5)
    at Provider (http://localhost:8888/wp-content/plugins/gutenberg/build/components/index.min.js?ver=9196abfde57f228d14ea:57219:3)
    at div
    at ShortcutProvider (http://localhost:8888/wp-content/plugins/gutenberg/build/keyboard-shortcuts/index.min.js?ver=ece48ff33936234123df:40:87)
    at App (http://localhost:8888/wp-content/plugins/gutenberg/build/edit-site/index.min.js?ver=41aa4ca25b45c449df04:4330:67)

This problem does not occur when the latest Gutenberg plugin is disabled.

Step-by-step reproduction instructions

• Open the Site Editor.
• Make changes to the template.
• Click the "Save" button,

Screenshots, screen recording, code snippet

f863d074af2f6b4d79194a33cffb3c44.mp4

Environment info

No response

Please confirm that you have searched existing issues in the repo.

Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

Yes

[t-hamano]

I am closing this issue as I have found that this log was intentionally added by #53666.