[FLEX-28257] strange line shows up above callout when opening callout with positioning with no arrows (before and before, after and after, before and after, after and before)

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Adobe Flex SDK Previous
• Fix Version/s: Adobe Flex SDK 4.6 (Release)
• Component/s: Mobile: Callout / CalloutButton
• Environment: Affected OS(s): All OS Platforms; Language Found: English
• Assignee: Adobe JIRA
• Reporter: Adobe JIRA
• Created: 18/Aug/11 15:18
• Updated: 15/Nov/11 16:13
• Resolved: 18/Aug/11 15:32

Description

Steps to reproduce:
1.paste the following code into your application and run;
<s:VGroup horizontalCenter="0">
<s:BorderContainer height="500" width="500" >
<s:CalloutButton id="calloutButton" horizontalCenter="0" verticalCenter="0" verticalPosition="before" horizontalPosition="before">
<s:BorderContainer>
</s:BorderContainer>
</s:CalloutButton>
</s:BorderContainer>
</s:VGroup>
2. click on the callout button to open callout.
3.

Actual Results:
you see a line shows up

Expected Results:
no such line

Workaround (if any):