[wp-trac] [WordPress Trac] #46997: Theme update links show in Customizer and don't work

[WordPress Trac]

#46997: Theme update links show in Customizer and don't work
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 Reporter:  desrosj                              |       Owner:  desrosj
     Type:  defect (bug)                         |      Status:  assigned
 Priority:  normal                               |   Milestone:  5.2.2
Component:  Customize                            |     Version:
 Severity:  normal                               |  Resolution:
 Keywords:  has-patch has-screenshots needs-     |     Focuses:  multisite
  testing needs-refresh                          |
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Comment (by mukesh27):

 @desrosj, As tested by @earnjam i got same error for
 [https://core.trac.wordpress.org/attachment/ticket/46997/46997.diff
 46997.diff] patch.

 {{{ data.update }}} variable does not got any value for single
 installation or in multisite installation.

 Instead of that can we check if current site is multisite or not in {{{
 /wp-includes/customize/class-wp-customize-theme-control.php }}} then it
 will resolve above issue for me.

 Check below attached patch.

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Ticket URL: <https://core.trac.wordpress.org/ticket/46997#comment:4>
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