```
12.50 -rakkaus:#mediawiki-i18n- (11 lines skipped) [Tue May 19 12:50:14 2015] [hphp] [4010:7fea11fff700:24:000002] [] \nWarning: Invalid operand type was used: implode()
expects a container as one of the arguments in /srv/mediawiki/tags/2015-05-18_15:13:26/extensions/Translate/api/ApiTranslateSandbox.php on line 170
09.58 -rakkaus:#mediawiki-i18n- (1 lines skipped) [25-May-2015 07:57:48 UTC] PHP Warning: implode(): Invalid arguments passed in
/srv/mediawiki/tags/2015-05-24_16:06:21/extensions/Translate/api/ApiTranslateSandbox.php on line 170
```
This happened when I tried to approve a translator on https://translatewiki.net/wiki/Special:ManageTranslatorSandbox ; it turns out I had already approved it but it wasn't removed from the list (or rather, another translator had been removed instead).
I should instead get an error message. Related: T60706.