[web/session] make sure not to modify an inner value of session.data (closes #11217958)
When we modify a mutable value stored in the session's data (dict-like object)
we prevent an alternative session data handler (eg. pyramid-redis-session)
from detecting this update and synchronizing it in its backend (like redis).
[MESSAGES CONTROL]
disable-msg = C0301
[VARIABLES]
# Enable / disable this checker
enable-variables = yes
additional-builtins = _, display_name
[BASIC]
required-attributes=
attr-rgx = (w|[a-z_][a-z0-9_]{2,30})
variable-rgx = (w|[a-z_][a-z0-9_]{2,30})$
argument-rgx = (w|[a-z_][a-z0-9_]{2,30})$
[TYPECHECK]
generated-members=debug,info,notice,warning,error,critical,exception