DDC-2525: [GH-707] [#DDC-2524] Wrong commit order with cascade remove and double association

[doctrinebot]

Jira issue originally created by user @doctrinebot:

This issue is created automatically through a Github pull request on behalf of mnapoli:

Url: #707

Message:

This PR contains the failing test cas for [DDC-2524](http://www.doctrine-project.org/jira/browse/[DDC-2524]%28http://www.doctrine-project.org/jira/browse/DDC-2524%29).

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-707] was closed:
#707

[doctrinebot]

Comment created by @FabioBatSilva:

Closed, For more details see #707

[doctrinebot]

Comment created by @beberlei:

Was not merged

[doctrinebot]

Issue was closed with resolution "Invalid"

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-707] was reopened:
#707

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-707] was closed:
doctrine/dbal#707

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-707] was labeled:
#707

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-1570] was assigned:
#1570

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-707] was closed:
#707

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-1570] was merged:
#1570