CompositionUid format while using FLAT format for creation

EHRBase 0.16.05

When I create a composition using FLAT format, i am getting the following response
“meta”: {
“href”: {
“url”: “http://ip6-localhost:8080/ehrbase/rest/ecis/v1/composition25776648-c859-409f-a5a5-b7c811314ca6::1
“action”: “CREATE”,
“compositionUid”: “25776648-c859-409f-a5a5-b7c811314ca6::1”

In my understanding the compositionUid format should be

Is this an expected result?

Thanks for the report. No this is not intended. It will be fixed soon.