Management Server does not recognize a session as removed in some scenarios

[bernardodemarco]

Problem Description

In some scenarios, the Management Server does not recognize that a console session has been released. As a consequence of that, the removed column of the cloud.console_session table remains indefinitely marked as NULL.

Versions

ACS versions 4.19 and 4.20

The steps to reproduce the bug

• API to list console sessions #11016 (review) and API to list console sessions #11016 (comment) describe two different situations in which this bug occur.

What to do about it?

Normalize these scenarios, ensuring that the removed attribute of console sessions is corretly set to the datetime in which the sessions are released.