2017WTE:
{F34920947}
DiscussionTools
{F34920945}
Trace:
```
trace: "TypeError at core/skins/Vector/includes/Hooks.php(275)
from core/skins/Vector/includes/Hooks.php(275)
#0 core/skins/Vector/includes/Hooks.php(223): Vector\\Hooks::makeMenuItemCollapsible(NULL)
#1 core/skins/Vector/includes/Hooks.php(372): Vector\\Hooks::updateUserLinksItems(SkinVector, array)
#2 core/skins/Vector/includes/SkinVector.php(428): Vector\\Hooks::onSkinTemplateNavigation(SkinVector, array)
#3 core/includes/skins/SkinTemplate.php(1516): SkinVector->runOnSkinTemplateNavigationHooks(SkinVector, array)
#4 core/includes/skins/SkinTemplate.php(774): SkinTemplate->buildContentNavigationUrls()
#5 core/includes/skins/SkinTemplate.php(746): SkinTemplate->getPortletsTemplateData()
#6 core/includes/skins/Skin.php(720): SkinTemplate->getCategoryLinks()
#7 core/includes/api/ApiParse.php(540): Skin->getCategories()
#8 core/includes/api/ApiMain.php(1889): ApiParse->execute()
#9 core/includes/api/ApiMain.php(837): ApiMain->executeAction()
#10 extensions/VisualEditor/includes/ApiVisualEditorEdit.php(142): ApiMain->execute()
#11 extensions/VisualEditor/includes/ApiVisualEditorEdit.php(440): ApiVisualEditorEdit->parseWikitext(integer)
#12 core/includes/api/ApiMain.php(1889): ApiVisualEditorEdit->execute()
#13 core/includes/api/ApiMain.php(837): ApiMain->executeAction()
#14 extensions/DiscussionTools/includes/ApiDiscussionToolsEdit.php(261): ApiMain->execute()
#15 core/includes/api/ApiMain.php(1889): MediaWiki\\Extension\\DiscussionTools\\ApiDiscussionToolsEdit->execute()
#16 core/includes/api/ApiMain.php(868): ApiMain->executeAction()
#17 core/includes/api/ApiMain.php(839): ApiMain->executeActionWithErrorHandling()
#18 core/api.php(90): ApiMain->execute()
#19 core/api.php(45): wfApiMain()
#20 {main}"
```