1134967 - subject is null in forms.js after expireOldEntriesDeletion

Status: RESOLVED DUPLICATE of bug 1404427

(Firefox :: Sync, defect, P3)

Description

[Matthew N. [:MattN]]

FormHistory: expireOldEntriesDeletion(1408856975422000,2312)
FormHistory: updateFormHistoryWrite  1
FormHistory: Remove from form history  [object Object]
FormHistory: removeEntries
FormHistory: Creating new statement for query: DELETE FROM moz_formhistory WHERE lastUsed <= :lastUsedEnd
TypeError: subject is null forms.js:232:14

forms.js:232 is:
          let guid = subject.QueryInterface(Ci.nsISupportsString).toString();
https://mxr.mozilla.org/mozilla-central/source/services/sync/modules/engines/forms.js?rev=4339077e7826#232

Comment 1

[Richard Newman [:rnewman]]

I don't think Sync expects a satchel-storage-changed/formhistory-remove notification to be sent for bulk removals.

(Our story around bulk removals is bad: see Bug 578694 for some context.)

Comment 2

[Mark Hammond [:markh] [:mhammond]]

This makes log noise so should be fixed, but doesn't seem to cause actual problems, so p3