**Problem:**
We will soon release the new `mul` language code on Wikidata (see T285156). We hope that the Wikidata Community will then start removing labels in languages with redundant strings and instead use the new `mul` language code. To allow labels to fall back to `mul` on WDQS, editors need to know that they have to include `mul` in their queries.
**Solution:**
What change is needed:
OLD
```lang=sparql
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
```
NEW
```lang=sparql
SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],mul,en". }
```
Where this change is needed:
* WDQS examples
* help pages
* auto-completion suggestions (WDQS GUI)
**Notes:**
* Only do this after mul is enabled on Wikidata.
* The label service doesn’t do language fallbacks on its own, it just goes through the list in its parameters. So it is enough to add `mul` to this list.
**Acceptance criteria:**
[] The Wikidata community knows what changes are needed.
[] We have fixed the auto-completion suggestions in the WDQS GUI code.
**Open questions:**
* We should have a list of places where changes will be needed.
**Original:**
As a query service user, I want the label service to produce useful labels, even when Wikidata editors start to remove labels in other languages that are redundant with the new `mul` language code (see parent task).
Since the label service doesn’t do language fallbacks on its own – it just goes through the list in its parameters (`bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en"`) – it’s probably sufficient to add `,mul` to that list in the autocompletion suggestions and in the query examples?