317084 - select drop down layering issue

Status: RESOLVED DUPLICATE of bug 313988

(Core :: Layout: Form Controls, defect)

Description

[Josh Dechant]

User-Agent:       Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en) AppleWebKit/312.5.1 (KHTML, like Gecko) Safari/312.3.1
Build Identifier: 

On any Moz 1.8 based products, if there is a select drop down in a container, whose has a parent with position: relative; [it does not need to be the immediate parent either, as long as at least one parent has this attribute], hiding and then showing the container [or showing if it is hidden to start with] causes the drop down options to not pop up.  This has a devastating effect to any kind of modern web apps that might use UI features like tabbed pages [tabbed forms] or forms that have parts you hide and show.  I've only been able to test this on Mac OS X but it is present in Firefox 1.5RC1/RC2/RC3, Moz 1.8b1, and SeaMonkey 1.5a1.  Please see the url for a full test case + 2 workarounds I've come up with.

Reproducible: Always

Steps to Reproduce:
Using the test case, Test 1:
1. Click the select [should drop down]
2. Click to hide the container
3. Click to show the container
4. Click the select drop down

Using the test case, Test 2:
1. Click to show the container
2. Click the select drop down
Actual Results:  
drop down options do not show

Expected Results:  
show the drop down options

Comment 1

[Steuard Jensen]

*** This bug has been marked as a duplicate of 313988 ***