[wp-trac] [WordPress Trac] #42719: Widgets lost or moved when themes are switched...

[WordPress Trac]

#42719: Widgets lost or moved when themes are switched...
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 Reporter:  andon.design                  |      Owner:
     Type:  defect (bug)                  |     Status:  new
 Priority:  normal                        |  Milestone:  Awaiting Review
Component:  Widgets                       |    Version:  4.9
 Severity:  normal                        |   Keywords:
  Focuses:  ui, administration, template  |
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 '''What I used for testing:'''
 - WordPress 4.9
 - no plugins active
 - only default WP themes tested
 - Browsers used for testing: Firefox v57.0 and Chrome v62.0.3202.94

 '''Steps to reproduce the issue:'''
 1. Set the current active theme to "Twenty Seventeen".
 2. Go to ''Appearance -> Widgets''.
 3. Assign new or move existing widget(s) to "Footer 1" and "Footer 2"
 widget areas.
 4. Active the "Twenty Fifteen" theme.
 5. Now active the "Twenty Seventeen" theme again.
 6. Go back to the ''Appearance -> Widgets'' page and inspect the theme's
 widget areas.

 '''Result:'''
 The widgets were not located where they were left last as were assigned
 prior to switching themes, however in my testing they were consistently
 either missing from "Footer 1" and "Footer 2" widget areas or moved to the
 "Blog Sidebar". Some were moved to Inactive Widgets section.

 My understanding is that the issues with theme switching and widgets
 should have been addressed in WP 4.9.

 I can replicate this with other themes that have different widget areas.

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Ticket URL: <https://core.trac.wordpress.org/ticket/42719>
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