[CRM-5612] Multiple tab - Session issues - CiviCRM Issue Tracker

Details

Currently you cannot add/edit data in multiple tabs for most of the pages.

1.	Multiple tabs opened of "Multiple Choice Options" admin page overwrites existing choice records	Done/Fixed	Donald A. Lobo
2.	Opening a different contact's cases tab in a new browser tab while creating a new case causes new case to go missing	Done/Fixed	Dave D
3.	Editing multiple contributions pages at the same time results in overwrite	Done/Fixed	Rajan P Mayekar
4.	'Add note' suffers from crossed wires between tab sessions	Done/Fixed	Donald A. Lobo
5.	Custom field admin settings pages suffer from crossed wires between tab sessions	Done/Fixed	Donald A. Lobo