Twenty Twenty-One: twenty_twenty_one_get_attachment_image_attributes affects the admin panel

[denisco]

Twenty Twenty-One v1.1

The function twenty_twenty_one_get_attachment_image_attributes affects the attributes of images in the admin panel.

I faced this problem while developing a plugin for comments (I attached a screenshot).

I think we need to add an additional condition to reduce the effect of this function.

[SergeyBiryukov]

In 49930:

Twenty Twenty-One: Make sure filtering attachment image attributes only affects front end and not the admin area.

Props denisco.
Fixes #52212.

[SergeyBiryukov]

Reopening for 5.6.1 consideration.

[whyisjake]

In 50043:

Twenty Twenty-One: Make sure filtering attachment image attributes only affects front end and not the admin area.

This brings the changes from [49930] to the 5.6 branch.

Props denisco, SergeyBiryukov.

Fixes #52212.

[desrosj]

Because this is the only change to Twenty Twenty-One since version 1.1 was released, a new version will not ship today in coordination with 5.6.1.

I'm going to revert this for the time being and move to 5.6.2.

If this change were to remain, users that downloaded 5.6.1 to install a new site would have a slightly different version of Twenty Twenty-One than those that received the theme when updating to 5.6, and that could lead to some confusion.

[desrosj]

In 50062:

Twenty Twenty-One: Revert [50043] from the 5.6 branch.

Since a new version of Twenty Twenty-One will not be published in coordination with 5.6.1, this will prevent slight differences between the version of the theme that ships with 5.6.1 and the one users received when updating the theme to version 1.1.

See #52212.