incorrect parsing of bind rest property

[gsathya]

Input Code

var {...{z}} = { z: 1}; console.log(z);

Babylon/Babel Configuration

Presets - stage3

Expected Behavior

→ ./out.gn/x64.debug/d8 --harmony-object-rest-spread -e "var {...{z}} = { z: 1}; print(z);"                                         
1

Current Behavior

SyntaxError

Your Environment

software	version
Babylon
node
npm
Operating System