[wp-trac] [WordPress Trac] #41517: Preview Changes results in Schedule button instead of Update fresh install 4.8 with Twenty Seventeen Theme

[WordPress Trac]

#41517: Preview Changes results in Schedule button instead of Update fresh install
4.8 with Twenty Seventeen Theme
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 Reporter:  eclath        |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  Awaiting Review
Component:  General       |    Version:  4.8
 Severity:  normal        |   Keywords:
  Focuses:                |
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 Fresh install of 4.8 using Twenty Seventeen Theme with no active plugins.
 Editing an already published page and clicking Preview Changes activates
 the "Schedule" button instead of "Update."
 This is only a minor irritation, since clicking "Schedule" immediately
 changes the button back to "Update," but each click does produce a new
 revision, and even the "schedule" option actually performs the "Update"
 action.
 Before "Preview Changes" Button clicked:
 <div id="publishing-action">
 <span class="spinner"></span>
                 <input name="original_publish" type="hidden"
 id="original_publish" value="Update">
                 <input name="save" type="submit" class="button button-
 primary button-large" id="publish" value="Update">
 </div>
 After "Preview Changes" Button clicked :
 <div id="publishing-action">
 <span class="spinner"></span>
                 <input name="original_publish" type="hidden"
 id="original_publish" value="Update">
                 <input name="save" type="submit" class="button button-
 primary button-large" id="publish" value="Schedule">
 </div>

 JQMIGRATE: Migrate is installed, version 1.4.1

 Using Chrome (incognito mode) Version 59.0.3071.115 (Official Build)
 (64-bit) on Windows 7 Professional. (Clearing Cache did not change the
 result)
 Tested on PHP 5.6.31, PHP 7.0.21 and 7.1.7
 Tried a second clean installation on a test subdomain and DID reproduce
 the same result. However, upgrading an existing site to 4.8 did NOT
 reproduce the symptoms.

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Ticket URL: <https://core.trac.wordpress.org/ticket/41517>
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