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Changes between Initial Version and Version 1 of Ticket #55917, comment 21

initial	v1
4	4
5	5	The [https://core.trac.wordpress.org/attachment/ticket/55917/55917.2.diff patch] proposed by @SergeyBiryukov resolves the "issue" in one place, but since then, another section of the code has emerged that creates a similar issue: https://github.com/WordPress/gutenberg/pull/42454/files#diff-28f36bb64fbbc8ce728db401b1e4cf30c9f44db7f5dcce1b7b0cc9ce60b1a209R191.
6		That PR introduces a new function called `build_template_part_block_instance_variations()`, which also causes a fatal error when using the code snippet above.
	6	That PR introduces a new function called `build_template_part_block_instance_variations()`, which also causes a fatal error when using the code snippet above (and it has been [https://github.com/WordPress/wordpress-develop/commit/3b63a75108b7f6d5e9112c556285ab1bc80ddbcf backported] to Core).
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8	8	For reference, here are the call stacks for both fatal errors (i.e., the "old" and the "new" one):