Show the language code in personal settings for unknown languages
Show the language code in personal settings for unknown languages

Steps to reproduce:
* having an unknown language set in oc_preferences
* browse the personal settings
* only get listed the first letter of this language in the language chooser

nextcloud/server,IljaN/core,pixelipo/server,jbicha/server,endsguy/server,sharidas/core,owncloud/core,Ardinis/server,pmattern/server,IljaN/core,xx621998xx/server,phil-davis/core,cernbox/core,bluelml/core,jbicha/server,michaelletzgus/nextcloud-server,andreas-p/nextcloud-server,endsguy/server,pollopolea/core,IljaN/core,michaelletzgus/nextcloud-server,pmattern/server,xx621998xx/server,whitekiba/server,xx621998xx/server,Ardinis/server,endsguy/server,cernbox/core,sharidas/core,pixelipo/server,pollopolea/core,owncloud/core,IljaN/core,whitekiba/server,bluelml/core,jbicha/server,jbicha/server,owncloud/core,andreas-p/nextcloud-server,pmattern/server,whitekiba/server,bluelml/core,pixelipo/server,sharidas/core,andreas-p/nextcloud-server,Ardinis/server,Ardinis/server,michaelletzgus/nextcloud-server,endsguy/server,IljaN/core,pollopolea/core,michaelletzgus/nextcloud-server,cernbox/core,pollopolea/core,pollopolea/core,endsguy/server,andreas-p/nextcloud-server,bluelml/core,owncloud/core,sharidas/core,whitekiba/server,xx621998xx/server,cernbox/core,sharidas/core,pixelipo/server,jbicha/server,pmattern/server,nextcloud/server,xx621998xx/server,owncloud/core,pixelipo/server,nextcloud/server,pmattern/server,nextcloud/server,andreas-p/nextcloud-server,Ardinis/server,whitekiba/server,bluelml/core,cernbox/core