Using back button in app just leads to previously read SMS threads

[droidus]

DESCRIPTION

When clicking the Back button in the app, it goes to another previously opened SMS conversation. And when clicking it again, and again, and again, it goes to other previously opened conversations/threads. Running version 3.9.4 on Android.

STEPS

1. Read a text thread
2. Open/read several other threads from other people
3. Use the back button several times.

EXPECTED

Should take you back to all of your SMS messages.

OBSERVATIONS

I resolve this by going to my home screen, then opening the app again, where it lists all of my SMS threads.