Restarting server after a show reload plays incorrect track.

[mstratford]

With the following conditions

• If a new show has been loaded
• without loading the a new file from that show into each player
• the players are restarted

This will happen:

• The players will load the new item from the show plan with the same weight
• It will seek/play to match the old loaded item.

Fix:

• Needs to load the exact loaded item data back in, rather than the weight from the new plan.