Breaking: #80374 - Default content element configuration for frontend login adapts fluid styled content 

See forge#80374

Description 

Default configuration for the frontend login content element was adapted to match fluid styled content instead of css styled content by default. Css styled content was adapted and works there as before.

Rendering for css styled content 

tt_content.login = COA
tt_content.login {
   10 =< lib.stdheader
   20 =< plugin.tx_felogin_pi1
}
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Rendering for fluid styled content 

tt_content.login =< lib.contentElement
tt_content.login {
   templateName = Generic
   variables {
      content =< plugin.tx_felogin_pi1
   }
}
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Impact 

Adjustments made manually to the TypoScript rendering definition of tt_content.login might not work in fluid styled content as expected.

Affected Installations 

Installations that are using fluid styled content and directly modify configuration of tt_content.login.

Migration 

Manual adaption is necessary.