Gutenberg: Captions from image blocks included in excerpt

Hi, thank you for this nice plugin.

Unfortunately I’ve stumbled over a problem with the Gutenberg Editor. Our posts start with an image which sometimes has a caption. This caption text is then preceded before the actual content of the post in the excerpt. We don’t want the image caption in the excerpt. Also it looks ugly as no spaces added between the caption and the other content.

The caption text can be found in <figcaption> in the <!-- wp:image --> block. I’m calling the template function with exclude_tags but the text enclosed by <figcaption> still appears. the_advanced_excerpt('length=380&no_custom=1&no_shortcode=1&exclude_tags=figure,img,figcaption')
Is it possible to exclude the captions of image blocks from the excerpt?

In your code you apply $text = apply_filters( 'the_content', $text );. In this filter the function do_blocks() extracts the caption text via function render_block(). Nevertheless render_block() provides a filter to short-circuit the rendering. Maybe you could hook into it to prevent the addition of the image captions.

Currently I’ve solved this by adding a filter function which hooks into render_block() before the call of the_advanced_excerpt() and removing it after the call again.