Issue #2479449 by sudiptadas19, smustgrave, akashkumar07, rithesh bk, rpayanm, pradhumanjain2311, tstoeckler, mrinalini9, tatisilva, larowlan, andypost, dawehner, xjm, yesct: contact_menu_local_tasks_alter() should check whether ['tabs'][0] is set (cherry picked from commit 833e599d)
