Unexpected Changes to Image Tag Sizes Attribute When Exporting

Community resources Bugs
1

When exporting site code, I’m seeing a change in the “sizes” element of some image tags and I didn’t do anything to cause the change.

For example, in a 6/30 export I saw:

sizes=“(max-width: 479px) 82vw, (max-width: 767px) 65vw, (max-width: 991px) 323px, 429px”

…but in an export done today on 7/7 I saw:

sizes=“(max-width: 479px) 82vw, (max-width: 767px) 65vw, 100vw”

(Notice how a lot of stuff just got replaced with 100vw). Is this expected? Why only on some images?

2

Today I noticed that this change appear to happen whenever I toggle preview, click though the various device widths, and then do another export (again, not actually changing anything on the page). It seems that preview is somehow causing this behavior.

3

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