As a Wikibase editor in a wiki with Federated Properties enabled, I want to be able to add statements to local items using both local and remote properties so that I can combine my local ontology with a remote ontology.
Right now saving a statement containing a federated property fails because the ID expects something that looks like a local property ID (i.e. P1234).
The request to the api should look like:
```
action=wbsetclaim&format=json&claim=%7B%22type%22%3A%22statement%22%2C%22mainsnak%22%3A%7B%22snaktype%22%3A%22value%22%2C%22property%22%3A%22http%3A%2F%2Fwikidata.beta.wmflabs.org%2Fentity%2FP93%22%2C%22datavalue%22%3A%7B%22type%22%3A%22string%22%2C%22value%22%3A%22cat%22%7D%7D%2C%22id%22%3A%22Q5%2468a44a9f-4be9-5913-686a-316797a20985%22%2C%22rank%22%3A%22normal%22%7D&baserevid=15&bot=1&assertuser=WikibaseAdmin&errorformat=plaintext&uselang=en&token=a95e1e659ccf1980cec8f239c87bac7461138d34%2B%5C
```
The users facing error looks like: {F34590224}
and the api error reads:
```
{"errors":[{"code":"internal_api_error_InvalidArgumentException","data":{"errorclass":"InvalidArgumentException"},"*":"[8db27d21c5441bfe65b464de] Exception caught: $idSerialization must match /^P[1-9]\\d{0,9}\\z/i"}],"*":"InvalidArgumentException at /var/www/html/vendor/wikibase/data-model/src/Entity/PropertyId.php(34)\nfrom /var/www/html/vendor/wikibase/data-model/src/Entity/PropertyId.php(34)\n#0 /var/www/html/vendor/wikibase/data-model/src/Entity/PropertyId.php(26): Wikibase\\DataModel\\Entity\\PropertyId->assertValidIdFormat(string)\n#1 /var/www/html/extensions/Wikibase/lib/includes/Serialization/CallbackFactory.php(74): Wikibase\\DataModel\\Entity\\PropertyId->__construct(string)\n#2 /var/www/html/extensions/Wikibase/lib/includes/Serialization/SerializationModifier.php(70): Wikibase\\Lib\\Serialization\\CallbackFactory->Wikibase\\Lib\\Serialization\\{closure}(array)\n#3 /var/www/html/extensions/Wikibase/lib/includes/Serialization/SerializationModifier.php(63): Wikibase\\Lib\\Serialization\\SerializationModifier->modifyUsingUnflattenedCallbacks(array, array)\n#4 /var/www/html/extensions/Wikibase/lib/includes/Serialization/SerializationModifier.php(33): Wikibase\\Lib\\Serialization\\SerializationModifier->modifyUsingUnflattenedCallbacks(array, array)\n#5 /var/www/html/extensions/Wikibase/repo/includes/Api/ResultBuilder.php(908): Wikibase\\Lib\\Serialization\\SerializationModifier->modifyUsingCallbacks(array, array)\n#6 /var/www/html/extensions/Wikibase/repo/includes/Api/ResultBuilder.php(881): Wikibase\\Repo\\Api\\ResultBuilder->getArrayWithAlteredClaims(array)\n#7 /var/www/html/extensions/Wikibase/repo/includes/Api/SetClaim.php(211): Wikibase\\Repo\\Api\\ResultBuilder->addStatement(Wikibase\\DataModel\\Statement\\Statement)\n#8 /var/www/html/extensions/Wikibase/repo/includes/Api/SetClaim.php(162): Wikibase\\Repo\\Api\\SetClaim->executeInternal()\n#9 /var/www/html/includes/api/ApiMain.php(1842): Wikibase\\Repo\\Api\\SetClaim->execute()\n#10 /var/www/html/includes/api/ApiMain.php(821): ApiMain->executeAction()\n#11 /var/www/html/includes/api/ApiMain.php(792): ApiMain->executeActionWithErrorHandling()\n#12 /var/www/html/api.php(90): ApiMain->execute()\n#13 /var/www/html/api.php(45): wfApiMain()\n#14 {main}"}
```