MySQL doesn't allow literal DEFAULT values to be used for BLOB, TEXT,
GEOMETRY or JSON columns and requires expression to be used instead.
Regression in 7414704e88.
Backport of dfc77637ea from main
Prior to this work, when async tasks that process the request are cancelled due
to receiving an early "http.disconnect" ASGI message, the request_finished
signal was not being sent, potentially leading to resource leaks (such as
database connections).
This branch ensures that the request_finished signal is sent even in the case
of early termination of the response.
Regression in 64cea1e48f.
Co-authored-by: Natalia <124304+nessita@users.noreply.github.com>
Co-authored-by: Carlton Gibson <carlton.gibson@noumenal.es>
Backport of 11393ab131 from main
