CopyDocument with overwrite existing does not overwrite existing translations, making a failed partial copy

Tested on 17.1.0 with following script:

{{velocity}}
#set ($sourceDoc = 'xwiki:BeforeCopy.WebHome')
#set ($targetDoc = 'xwiki:AfterCopy.WebHome')

$xwiki.copyDocument($sourceDoc, $targetDoc, $NULL, false, true)
{{/velocity}}

After creating both pages and translations in both pages. This returns true and the translation are overwritten.
I believe this has been fixed by either XWIKI-16146 or XWIKI-19609 since they changed the logic of XWiki#copyDocument.