Deleting a folder removed every rule that filed into it, along with
whatever else those rules did. A rule that filed into Work, marked read
and stopped processing lost the marking and the stopping too, and
deleting a folder says nothing about whether those were still wanted.
Only the fileinto action goes now. A rule left with nothing to do is
still removed, because it has nothing to do; a rule filing into two
folders keeps the one that still exists. The toast says which happened.
Verified against the running app with two rules aimed at the same
folder, one filing only and one filing and marking read: the first was
removed, the second kept its markread, and the script stored on the
server agrees.
A rule files mail into a folder by path, because that is what Sieve
needs. Rename the folder and the path becomes a lie: the rule keeps
matching and stops filing, and nothing anywhere says so. Delete the
folder and the rule is aimed at nothing at all.
Renaming or moving a folder now rewrites the rules that file into it,
and deleting one takes its rules with it. Both are reported in a toast,
because rules live on the server and are otherwise invisible from the
folder list.
The reconciliation runs off one hook. Before a mailbox is changed the
folder and everything beneath it are noted with the paths they have then
-- renaming a parent rewrites the path of every child, and rules naming
those children are just as stale. Afterwards, whatever still exists is
retargeted and whatever has gone takes its rules with it.
Rules record the folder twice, as a mailboxId and as the path. The id is
the reliable half and is preferred; the path is the fallback for rules
written before the id was recorded, or by hand in the Scripts tab, and a
rule matched that way has its id filled in on the way past. Only the
script the rule editor manages is touched; a hand-written one is left
alone.
Awaited rather than fired and forgotten, so a folder operation is not
reported complete while the rules still disagree with it.
jcoffey-dev