[wp-trac] [WordPress Trac] #54900: PHP warning in `WP_REST_Global_Styles_Controller` if no `styles` exist in theme.json

[WordPress Trac]

#54900: PHP warning in `WP_REST_Global_Styles_Controller` if no `styles` exist in
theme.json
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 Reporter:  ntsekouras               |       Owner:  (none)
     Type:  defect (bug)             |      Status:  new
 Priority:  normal                   |   Milestone:  5.9.1
Component:  Editor                   |     Version:
 Severity:  minor                    |  Resolution:
 Keywords:  has-patch needs-refresh  |     Focuses:
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Comment (by ntsekouras):

 I updated the PR and is ready to be reviewed/tested.

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Ticket URL: <https://core.trac.wordpress.org/ticket/54900#comment:5>
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