When trying to create a new book i get the following message:
DrupalCoreEntityEntityStorageException: SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '53' for key 'PRIMARY': INSERT INTO "book"
The problem here is the book is added twice. Therefor the book is created once and for the other one I get the message above.
For some reason the node creating is updated directly after creating it. Therefor the book module gives this error. To figure out where the problem is I wonder how I can see what module is updating the node after the insert.
Can anyone help me with taking the next step in debugging this problem?