461019 - Can't snooze alarms because the selection window immediately disappears

Status: RESOLVED DUPLICATE of bug 407915

(Calendar :: Alarms, defect)

Description

[a_geek]

User-Agent:       Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.8.1.17) Gecko/20080829 Firefox/2.0.0.17
Build Identifier: Lightning 0.9

Often, when I open TB, a box with some alarms from Lightning appears. I am then asked to dismiss or snooze alarms. If I click on "snooze", which shows a downward arrow, suggesting that a drop-down menu should open there, I briefly see the flash of a window's frame, probably 2/10ths of a second long, and then it's gone.  No window with an option to choose for how long to snooze, appears.

Reproducible: Always

Steps to Reproduce:
1. Enter an alarm
2. Open TB at a time close to the alarm, within the alerting time window
3. see the dialogue to dismiss or snooze the alarm.
4. click on "snooze", and see the window frame flashing briefly
Actual Results:  
No dialogue that would allow me to snooze an alarm, opens.

Expected Results:  
I expect some kind of dialogue to open which would allow me to tell Lightning to alert me again at some later time. 

For me, this bug is there since about Lightning 0.5. I've already looked whether the dialogue might have appeared in its own window, and maybe hidden somewhere, but couldn't find it (ie, using my window manager's window list).

Not tagging "Major" because I don't work intensively with Lightning, to begin with.