[wp-trac] [WordPress Trac] #55996: the get_the_block_template_html call all the same functions as the the_conent filter so they are run twice

[WordPress Trac]

#55996: the get_the_block_template_html call all the same functions as the
the_conent filter so they are run twice
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 Reporter:  pbearne                       |       Owner:  (none)
     Type:  defect (bug)                  |      Status:  new
 Priority:  normal                        |   Milestone:  Awaiting Review
Component:  Formatting                    |     Version:
 Severity:  normal                        |  Resolution:
 Keywords:  needs-patch needs-unit-tests  |     Focuses:  performance
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Comment (by ocean90):

 Replying to [comment:5 ocean90]:
 > Removing both `wp_filter_content_tags()` calls still adds the loading
 attribute so there's indeed something that still runs the `the_content`
 filter on the output.

 That's actually because of the post content block which
 [https://core.trac.wordpress.org/browser/tags/6.0.1/src/wp-includes/blocks
 /post-content.php?marks=55#L54 calls the filter in the render callback].
 At this point the loading attribute may not be added but due to the
 following `wp_filter_content_tags()` calls for rendering the template
 parts the attribute is added.

 Related: #56295

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Ticket URL: <https://core.trac.wordpress.org/ticket/55996#comment:6>
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