It's not in v1.3, patch #16 is still needed to fix this bug.
Patch #6 is working for me on 10.3.0 as well.
I ran into the same entity update error after updating core to 10.3.0. I was able to fix it by just running the same "add_fields" function called by the 9001 update hook in the .install file:
drush php:eval "_scheduler_content_moderation_integration_add_fields()"
Patch #2 works for me as well.
This patch should work against v1.1.0
Thanks catch, patch in #17 works for me on a fresh install of 10.1.2 when loading the site through browser-sync.
This patch tweaks the first JS comment block to replace the HTML tags with words, e.g., <body> becomes "the body tag".
Is there a need for these comments to be in the javascript? It makes sense to move them above this heredoc so that they are PHP comments instead of JS comments.