The translations tests change the default language on setup and commit the
change. So we must restore the initial state of the database at the end of the
test case.
issue9702
review312521002
The price_decimal stored in ir.configuration is checked against the current
configuration value. We do not allow to start serving a database for which the
values are different as it may be due to a misconfiguration which can lead to
data corruption.
issue9324
review317381002
Cédric Krier