Steps 1-5 as bug 58750.

1. Go to http://translatewiki.net/wiki/Special:MainPage as unregistered user
2. Create an account as non-translator
3. Visit http://translatewiki.net/wiki/Special:FirstSteps
4. Confirm the chosen language
5. Enter/leave any text and confirm
6. Proceed with the next step, asking for translator rights

Errore interno - {{SITENAME}}
[605ead78] /wiki/Special:FirstSteps Exception from line 1335 of /www/translatewiki.net/w/includes/api/ApiBase.php: You're not allowed to edit this wiki through the API
Backtrace:
#0 /www/translatewiki.net/w/includes/api/ApiBase.php(1892): ApiBase->dieUsage(string, string)
#1 /www/translatewiki.net/w/includes/api/ApiMain.php(814): ApiBase->dieUsageMsg(string)
#2 /www/translatewiki.net/w/includes/api/ApiMain.php(850): ApiMain->checkExecutePermissions(ApiThreadAction)
#3 /www/translatewiki.net/w/includes/api/ApiMain.php(356): ApiMain->executeAction()
#4 /www/translatewiki.net/w/extensions/Translate/specials/SpecialFirstSteps.php(367): ApiMain->execute()
#5 /www/translatewiki.net/w/extensions/Translate/specials/SpecialFirstSteps.php(32): SpecialFirstSteps->showPermissions(boolean)
#6 /www/translatewiki.net/w/includes/specialpage/SpecialPage.php(673): SpecialFirstSteps->execute(NULL)
#7 /www/translatewiki.net/w/includes/SpecialPageFactory.php(488): SpecialPage->run(NULL)
#8 /www/translatewiki.net/w/includes/Wiki.php(298): SpecialPageFactory::executePath(Title, RequestContext)
#9 /www/translatewiki.net/w/includes/Wiki.php(596): MediaWiki->performRequest()
#10 /www/translatewiki.net/w/includes/Wiki.php(460): MediaWiki->main()
#11 /www/translatewiki.net/w/index.php(49): MediaWiki->run()
#12 {main}

Version: master
Severity: minor