In the context of testing something else, I tried to create [[ https://en.wikipedia.beta.wmflabs.org/wiki/User talk:DannyS712/aoe ]] with some random text (I think it was "test") and got the following error:
```
[XSzFKKwQBHcAAFUheyYAAAAO] /w/index.php?title=User_talk:DannyS712/aoe&action=submit ExternalStoreException from line 140 of /srv/mediawiki/php-master/includes/externalstore/ExternalStoreAccess.php: Unable to store text to external storage
Backtrace:
#0 /srv/mediawiki/php-master/includes/externalstore/ExternalStore.php(136): ExternalStoreAccess->insert(string, array)
#1 /srv/mediawiki/php-master/extensions/AbuseFilter/includes/AbuseFilter.php(1601): ExternalStore::insertToDefault(string)
#2 /srv/mediawiki/php-master/extensions/AbuseFilter/includes/AbuseFilter.php(1445): AbuseFilter::storeVarDump(array)
#3 /srv/mediawiki/php-master/extensions/AbuseFilter/includes/AbuseFilter.php(1281): AbuseFilter::addLogEntries(array, array, AbuseFilterVariableHolder, string)
#4 /srv/mediawiki/php-master/extensions/AbuseFilter/includes/AbuseFilterHooks.php(138): AbuseFilter::filterAction(AbuseFilterVariableHolder, Title, string, User)
#5 /srv/mediawiki/php-master/extensions/AbuseFilter/includes/AbuseFilterHooks.php(60): AbuseFilterHooks::filterEdit(DerivativeContext, WikitextContent, string, Status, string, string)
#6 /srv/mediawiki/php-master/includes/Hooks.php(174): AbuseFilterHooks::onEditFilterMergedContent(DerivativeContext, WikitextContent, Status, string, User, boolean)
#7 /srv/mediawiki/php-master/includes/Hooks.php(202): Hooks::callHook(string, array, array, NULL)
#8 /srv/mediawiki/php-master/includes/EditPage.php(1766): Hooks::run(string, array)
#9 /srv/mediawiki/php-master/includes/EditPage.php(2096): EditPage->runPostMergeFilters(WikitextContent, Status, User)
#10 /srv/mediawiki/php-master/includes/EditPage.php(1596): EditPage->internalAttemptSave(NULL, boolean)
#11 /srv/mediawiki/php-master/includes/EditPage.php(681): EditPage->attemptSave(NULL)
#12 /srv/mediawiki/php-master/includes/actions/EditAction.php(55): EditPage->edit()
#13 /srv/mediawiki/php-master/includes/actions/SubmitAction.php(38): EditAction->show()
#14 /srv/mediawiki/php-master/includes/MediaWiki.php(507): SubmitAction->show()
#15 /srv/mediawiki/php-master/includes/MediaWiki.php(302): MediaWiki->performAction(Article, Title)
#16 /srv/mediawiki/php-master/includes/MediaWiki.php(892): MediaWiki->performRequest()
#17 /srv/mediawiki/php-master/includes/MediaWiki.php(523): MediaWiki->main()
#18 /srv/mediawiki/php-master/index.php(42): MediaWiki->run()
#19 /srv/mediawiki/w/index.php(3): include(string)
#20 {main}
```
I tried again with the text "test2", and it worked properly that time