OAIIndexEventConsumer does not reflect changes

[kosarko]

non discoverable items should disappear from oai; they do if you run the import, but the event consumer does not reflect this.

[kosarko]

by @cyplas:

Ok, I reproduced this now on our test server (fado):

• create a new submission ---> new handle: 11356/1160
• visit https://*/repository/oai/cite?metadataPrefix=cmdi&handle=11356/1060 ---> "The given id does not exist"
• make rebuild_oai
• visit https://*/repository/oai/cite?metadataPrefix=cmdi&handle=11356/1060 ---> showed item
• Edit item > Permanently delete > Delete
• visit https://*/repository/oai/cite?metadataPrefix=cmdi&handle=11356/1060 ---> showed item
• make update_oai
• visit https://*/repository/oai/cite?metadataPrefix=cmdi&handle=11356/1060 ---> showed item
• make rebuild_oai
• visit https://*/repository/oai/cite?metadataPrefix=cmdi&handle=11356/1060 ---> "The given id does not exist"

So it looks like the listener didn't work, and that update_oai is not enough for this, but rebuild_oai works.