如何防止Android Studio 2.0在从设备上卸载app后进行完全的干净构建?

I've been using Android Studio 2.0 Beta 5 with Gradle plugin 2.0.0-beta5. I've had Instant Run feature enabled, which is very useful when I want to do a quick change-and-test. Because it usually needs 50 seconds for my project to do a complete :assembleDebug. With Instant Run, I've been able to get my changed code running on device within about 10 seconds.I've been using Android Studio 2.0 Beta 5 with