903875 - The Library fails to accurately return to the previously accessed section

Status: NEW

(Toolkit :: Places, defect, P5)

Description

[Alice0775 White]

Build Identifier:
http://hg.mozilla.org/mozilla-central/rev/3d20597e0a07
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:26.0) Gecko/20100101 Firefox/26.0 ID:20130811030225

Reproducible: Intermittently (high probability)

#1 Steps To reproduce:
1. Make history items of enough quantity for more than three days.

2. Restart Browser
3. Alt > History > Show All History
4. Select "Yesterday" in left pane
5. Open any history item in the right pane (double click or choose "Open" of places context menu)
6. Repeat from step2

Actual Results:
The chosen item of the left pane is changed to "Downloads" suddenly

Expected Results:
Selected item of the left pane should not be changed. (In this case it stay "Yesterday")


#2 Steps To reproduce:
1. Make history item of enough quantity for around three days

2. Restart Browser
3. Alt > History > Show All History
4. Select "Today" in left pane
5. Open any history item in the right pane (double click or choose "Open" of places context menu)
6. Repeat from step2

Actual Results:
The last item of the period in the left pane disappears

Expected Results:
The last item of the period in the left pane should not disappear

Regression window(m-c):
Good:
http://hg.mozilla.org/mozilla-central/rev/e23e43a2c14e
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20130318 Firefox/22.0 ID:20130318130735
Bad:
http://hg.mozilla.org/mozilla-central/rev/2c41bf87b4e5
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20130319 Firefox/22.0 ID:20130319064414
Pushlog:
http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=e23e43a2c14e&tochange=2c41bf87b4e5


Regression window(m-i):
Good:
http://hg.mozilla.org/integration/mozilla-inbound/rev/e23e43a2c14e
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20130318 Firefox/22.0 ID:20130318071133
Bad:
http://hg.mozilla.org/integration/mozilla-inbound/rev/ee2e53392df1
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:22.0) Gecko/20130318 Firefox/22.0 ID:20130318085334
Pushlog:
http://hg.mozilla.org/integration/mozilla-inbound/pushloghtml?fromchange=e23e43a2c14e&tochange=ee2e53392df1

Regressed by: Bug 830423

Comment 1

[Alice0775 White]

Attachment: screenshot

Comment 2

[bhavana bajaj [:bajaj]]

Passing on to :mak to take a look given this may be a fallout from 830423

Comment 3

[bhavana bajaj [:bajaj]]

Will consider a low risk uplift but not a release blocker given its an old regression.

Comment 5

[James Teow [:jteow]]

As discussed in Bug Scrub, the Library doesn't use an advanced heuristic for knowing which section to load.

Instead, it'll remember its last position and attempt to reload it. In the screenshot the index that once corresponded to Yesterday is Downloads.