Primary graphic not sent on reconnects

[NicoleYarroch]

Bug Report

Displaying a primary graphic in a SDLShow on reconnects fails when the image is the same as the one being displaying on disconnect. This is because the manager thinks the image is already being displayed.
The SDLTextAndGraphicManager's currentScreenData needs to get reset on disconnects.

Reproduction Steps

1. Connect app to TDK and open SDL app.
2. Wait for primary graphics to show up.
3. Disconnect app from TDK.
4. Reconnect app to TDK and open SDL app and wait for the same primary graphic to show up.

Expected Behavior

The primary graphic should show up on the reconnect.

Observed Behavior

The primary graphic does not show up on the reconnect.

OS & Version Information

• iOS Version: n/a
• SDL iOS Version: 5.2
• Testing Against: TDK (SYNC 3)

Test Case, Sample Code, and / or Example App

SDL_iOS example app