Just uploaded my 1099-B From Etrade/Morgan Stanley (after merger) and Wash Sale Loss Amount is Doubled in TT
The Disallowed Wash Sale amount in Box 1g on the 1099B is showing up doubled as an adjustment in Turbo Tax. (which means that not only is the Loss Amount disallowed, it now shows as income!)
Strangely, the same thing is not happening in the 1099B for the period prior to the Morgan Stanley takeover...that 1g amount carries over to TurboTax correctly.