https://bugzilla.wikimedia.org/show_bug.cgi?id=62353
Bug ID: 62353
Summary: Flow: can't edit header of empty Flow board, exception
"Unable to load topic list history for <UUID>"
Product: MediaWiki extensions
Version: master
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: Unprioritized
Component: Flow
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected],
[email protected]
Web browser: ---
Mobile Platform: ---
Visit a non-existent user_talk page on ee-flow and click the pencil to edit the
Flow board header.
You get a pink errorbox:
An error occurred.
The error message received was: Exception Caught: Unable to load topic list
history for <UUID>
I'm not sure what <UUID> is, there isn't a UUID yet. I was logged in at the
time as Admin.
For a recent failure, the request is
action=query
flowpage=User talk:Gersh
flowparams={"header":{"contentFormat":"wikitext"}}
flowworkflow=
format=json
list=flow
The API response and the debug.log contain:
[exception] [907b0db4]
/w/api.php?action=query&format=json&list=flow&flowpage=User+talk%3AGersh&flowworkflow=&flowparams=%7B%22header%22%3A%7B%22contentFormat%22%3A%22wikitext%22%7D%7D
Exception from line 84 of
/srv/mediawiki/extensions/Flow/includes/Block/BoardHistory.php: Unable to load
topic list history for rqgykdahb0eanhv0
#0 /srv/mediawiki/extensions/Flow/includes/Block/BoardHistory.php(65):
Flow\Block\BoardHistoryBlock->loadBoardHistory()
#1 /srv/mediawiki/extensions/Flow/includes/api/ApiQueryFlow.php(39):
Flow\Block\BoardHistoryBlock->renderAPI(Object(Flow\Templating), Array)
#2 /srv/mediawiki/includes/api/ApiQuery.php(279): ApiQueryFlow->execute()
...
The workaround is to create a first topic (which has its own bug that you can't
preview it).
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