Crash after tap on notification

[ognjenns]

While we are on the call screen (call in progress), pull down the notifications and tap on call notification. The application crash with log:
Process: org.restcomm.android.olympus.premium.debug, PID: 9353
java.lang.NullPointerException: Attempt to invoke virtual method 'void org.webrtc.SurfaceViewRenderer.setVisibility(int)' on a null object reference
at org.restcomm.android.sdk.RCConnection.detachVideo(RCConnection.java:1467)
at org.restcomm.android.olympus.CallActivity.onPause(CallActivity.java:182)
at android.app.Activity.performPause(Activity.java:7115)
at android.app.Instrumentation.callActivityOnPause(Instrumentation.java:1407)
at android.app.ActivityThread.performNewIntents(ActivityThread.java:2981)
at android.app.ActivityThread.handleNewIntent(ActivityThread.java:2999)
at android.app.ActivityThread.-wrap14(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1672)
at android.os.Handler.dispatchMessage(Handler.java:105)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6541)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)