Under Windows, when alt-tabbing during a drag and drop, the drag and drop is broken

Scenario: you want to move a tab from one Sublime Text 2 window to the other, but to reach the other window you must alt-tab while dragging the tab.  Unfortunately, alt-tab breaks the drag and drop.

Most other tabbed applications (e.g. Firefox) work fine when alt-tabbing while dragging a tab.

This is also broken for win-tab.