environment-to-ini
Backport #27543 by @wxiaoguang Fix #27541 The INI package has a quirk: by default, the keys are inherited. When maintaining the keys, the newly added sub key should not be affected by the parent key. Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
db.DefaultContext
Set[Type]
map[Type]bool/struct{}