External Panel loose correct _openedPage randomly after multiple page change

[thomas-lm]

Using 2x externals panels,
After many page change one panel does not opened correctly (panel's _wrapper is not set correctly and the panel open on the wrong page)

Test page : http://jsbin.com/dawutofa/5/edit
see also 1.4.2 demo page : http://demos.jquerymobile.com/1.4.2/panel-external-internal/
Steps to reproduce:

1. Click "Panel1 from page 1" and change to page 2
2. Click "Panel2 from page 2" and change to page 1

repeat this until the panel no longer appears {

• Click "Panel1 from page 1" and change to page 2
• Click "Panel1 from page 2" and change to page 1

}

reproduce on firefox 27 & chromium 32

I have temporaly solve this issue by reseting _openedPage to null after pageshow on panel's _bindPageEvents function