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Changes between Initial Version and Version 1 of Ticket #40439, comment 32

initial	v1
8	8	5. Revisit the UI to create missing sub-sizes. TBD: do we want it or need it in core or shall we leave it for plugins? If yes, it needs adding to the media modal, and perhaps other places images can be uploaded (custom header, etc.).
9	9
10		The 4) is not in the patch yet and seems it will need most testing. It should handle multiple images, so we are looking at temporarily storing a queue of image sub-sizes that need to be created, and chaining multiple requests until that queue is emptied. Of course this will need safeguards against circular dependencies, retry on fail, etc.
	10	The 4) is not in the patch yet and seems it will need most testing. It should handle uploading of multiple images, so we are looking at temporarily storing a queue of image sub-sizes that need to be created, and chaining multiple requests until that queue is emptied. Of course this will need safeguards against circular dependencies, retry on fail, etc.
11	11
12	12	Thinking we can split (at least) 4) and 5) into separate tickets. Seems 1), 2) and 3) can be handled here and committed soon, so we can continue with the rest.