Home button behavior w/ jb & no lock screen

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http://forums.androidcentral.com – I don't use any lock screen and I always use the home button to wake my phone up. Since official JB, the home button not only wakes the phone up but it closes the app I'm in. Example : I'm browsing something on chrome, the screen turns off bc of timeout, I wake the phone using the home button and I see chrome back but immediatly it closes down like if I had pressed the home button again (but I didn't). The same behavior does not happen when a lock screen is enabled. I tried searching for an answer and tried the solution of editing the .kl files in system/usr/keylayout by adding WAKE_DROP (HowTos)