Apex mixes applications working with two windows at the same time

Hi all, while developing in Apex I have found the following problem:
Working with two different applications at the same time, the browser goes from one to another indistinctly.
To reproduce the problem:
1. Open the same application builder in two different Firefox windows
2. Open a different application in each window (In my case: application 103 in window1 and application 105 in window2)
3. Go to shared components in both windows (window1 first)
- window1 breadcrumbs show: Home > Application Builder > Application 103 > Shared Components
- window2 breadcrumbs show: Home > Application Builder > Application 105 > Shared Components
4. Click in any shared component in window1 (Templates, Authentication Schemes...)
- window1 breadcrumbs show: Home > Application Builder > Application *105* > Shared Components > Templates (Application 105 instead of 103)
Is it a bug? I have read the known issues [[Here]|http://www.oracle.com/technetwork/developer-tools/apex/downloads/apex402knownissues-189793.html] but it does not appear.
Related Data:
Application Express version 4.0.2.00.07
Firefox 3.6.15
SO: Windows XP
The error is not reproduced with IE7. I have not tested any other browser.
Regards,
Molina

If you tried opening up two pages in the same application each of which modifies the same page items, you would notice the same issue.
This is because, in a session there is only one set of values for page items(or application items) and every parallel call to the same page would update the same bind variables.
Now the development environment or Apex Builder is also an apex application , and when try and open up the pages as you mentioned, they both access the same Application Builder page and sets/resets any existing values for those variables(and maybe cookies too if they are being used) , hence the 'mixing up'.
If that didn't convince you, check the URL of both the pages when you load them, they should show the same page number ( f?p=APP_ID:PAGE_NUMBER syntax). Imagine if the same approach was done with one of your application pages, say an edit form opened from a report with multiple records in multiple tabs like what happened with this case: {message:id=9346663}
So this really isn't a bug in a way, because that is how session states in apex is/was maintained. Ofcourse if they used another kind of development platform for building pages, it may have been avoided, but thats an altogether different point in itself.

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