Upgrade 3.0.28->3.0.30 causes NPE in my tests

Hello!
Upgrade to new release breaks my unit tests.
If i create and drop vertex inside transaction and vertex has unique index, I got NPE:
com.orientechnologies.orient.core.exception.OStorageException: Exception during execution of component operation inside of storage modelstest

Caused by: java.lang.NullPointerException: null
at com.orientechnologies.orient.core.index.OIndexUnique.lambda$new$0(OIndexUnique.java:56) [orientdb-core-3.0.30.jar:3.0.30]

github issue:

Hi @arch7tect

Thank you for reporting, we are taking in charge the issue.
I’ll give you an update on GitHub

Thanks

Luigi

Any news on this issue?
Sorry for the question, but this bug ruins our tests and does not allow us to update the version.