[FLOW3-general] #1025 - Error while doing doctrine update

[Mario Beiser]

Hi there,

I deleted a former OneToOne relation within my model because it isn't
needed anymore.
By triggering doctrine update I am receiving an error as follow:

Uncaught Exception
  An exception occurred while executing 'DROP INDEX UNIQ_B84BB6A67D3656A4
  ON test_package_domain_model_prospect':

  SQLSTATE[HY000]: General error: 1025 Error on rename of
  './test_package/#sql-4ac_ee6' to
  './test_package/test_package_domain_model_prospect' (errno: 150)

Any idea on how to solve this?

best,
Mario