Blog Posts Block: Show all categories and not just the alphabetically-first category

[arunsathiya]

Steps to reproduce

• Start with the full site editing plugin active on your WordPress site.
• Add the Blog posts block to a page and choose a category to show posts from.

What I expected

• It also shows all the categories that the post belongs to, above the post titles.

What happened instead

• The label show above the post title is only the alphabetically-first one.

Browser / OS version

• macOS 10.15.5 (19F101)
• Brave Version 1.11.97 Chromium: 84.0.4147.89 (Official Build) (64-bit)

Screenshot / Video

In the image above, we can see that we have marked the block to show posts from Goods category.

Image 1	Image 2	Image 3

Comparing the 3 images and the first image, we can see that only the alphabetically-first category appears. The other categories do not appear.

Context / Source

Feature request from user.

[arunsathiya]

22721864-hc

[mikeicode]

Also 23046326-hc

[metabreakr]

3435829-zen

[github-actions]

This issue is stale because it has been 180 days with no activity. You can keep the issue open by adding a comment. If you do, please provide additional context and explain why you’d like it to remain open. You can also close the issue yourself — if you do, please add a brief explanation and apply one of relevant issue close labels.

[metabreakr]

4097067-zen

[msilbers]

requested in #31502345-hc