1486270 - Changing View Layout breaks mail view on multiple tabs

Status: RESOLVED DUPLICATE of bug 636874

(Thunderbird :: Mail Window Front End, defect)

Description

[Alfred Peters [:infofrommozilla]]

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0
Build ID: 20180824175218

Steps to reproduce:

- Open 2 mail folders in 2 tabs.
- Select an email in each of them.
- Change the layout: View -> Layout -> 'Classic|Wide|Vertical View'
- Select the other tab.



Actual results:

The message view in that tab is empty and stays so even if I select a different mail or folder.

Reproduced with TB52.9.1 and current Trunk

Comment 1

[Wayne Mery (:wsmwk)]

sounds like bug 926099

Comment 2

[Alfred Peters [:infofrommozilla]]

(In reply to Wayne Mery (:wsmwk) from comment #1)
> sounds like bug 926099

That sounds more like an enhancement request.
It also does not destroy the mail view.

Comment 3

[Alfred Peters [:infofrommozilla]]

When changing view, I get different error messages in the error log:

TB52.9.1:
| Please do not load stuff in the multimessage browser directly, use the SummaryFrameManager instead.  summaryFrameManager.js:84
| 	SummaryFrameManager.prototype._onLoad resource://gre/modules/summaryFrameManager.js:84:9
| 	bound  self-hosted:916:17
<https://dxr.mozilla.org/comm-esr52/rev/658ea051efa3834f4adccc138d4722cf47d3bf0d/mail/base/modules/summaryFrameManager.js#84>

Trunk:
| TypeError: singletons is null, can't access property "entries" of it ActorManagerChild.jsm:192:1 
<https://dxr.mozilla.org/mozilla-central/rev/cc9e8157421130371eee2a782dd7b9363834e20d/toolkit/modules/ActorManagerChild.jsm#192>

Comment 4

[Jorg K (CEST = GMT+2)]

The last one was unrelated and fixed in bug 1485649.