requested database does not belong to the calling thread

[davidovv]

I tried to compile my application for qt 5.12 and i get the error from title

QSqlDatabasePrivate::database: requested database does not belong to the calling thread.

QSqlDatabasePrivate::database: requested database does not belong to the calling thread.

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The thing is that my application was already creating a new connection in every thread that uses database,
and i cloned default connection to a new one for the calling thread, like this:

QSqlDatabase db = QSqlDatabase::cloneDatabase(QSqlDatabase::database(), name);

QSqlDatabase db = QSqlDatabase::cloneDatabase(QSqlDatabase::database(), name);

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With this new restriction I cant clone database from another thread. How am i supposed to do it now