Image block - If replacing an image with an alt text, it doesn’t overwrite the IMAGE ALT field value

[andeng1106]

Describe the bug

• Related to a fix for this issue: Image with alt text - Custom alt text removed when adding an image from media library that has no alt text #2524
• Current behavior: If I'm replacing the original image with a new image and both have alt text, the new image's alt text doesn't overwrite the original image's alt text
• Two people in the community have asked about this:
  • https://www.facebook.com/groups/wpstackable/permalink/1310527506502426/
  • https://www.facebook.com/groups/wpstackable/posts/1328008648087645/

To Reproduce
Steps to reproduce the behavior:

1. Add an Image block
2. Upload an image with an alt text
3. See that the alt text is added on the IMAGE ALT field
4. Replace image with another image with alt text
5. See that the IMAGE ALT field value is still the first image's alt text

Expected behavior
If replacing an image with an alt text, it should overwrite the IMAGE ALT field's existing value

Screenshots

Screen.Recording.2023-11-03.at.4.16.50.PM.mov