Model data in a dialog is not updated for version 1.20.9

Hello Experts,

I've a simple view.

The view has a button that opens a popup window with table data.

Scenario:

1) I press the button and popup is opened with data (OK)

2) I close the window

3) I press the button again popup is opened without any data (NOT OK)

jsbin: http://jsbin.com/secugitoha/1/edit?html,output

As you can see in the jsbin, in latest version (1.26.10) the problem is fixed.

However, I cannot updated to 1.26.10 because this version has a problem with tab navigation (see https://scn.sap.com/thread/3704173 ).

Can someone suggest a workaround for this issue? (for instance reloading the data in some way).

Regards,

Omri