Ok, first i made a redstone clock to move a block around with pistons (the clock is running during the rest of the changes), then i changed that block to a redstone block. Then i made currents that the redstone block would turn on. And then i added redstone torches to the mix (that the currents would power the torches on and off). Finally I added redstone lamps to all of the output redstone. I got an interesting result as in one of the redstone lamps powered by the torches would stay on the whole time as the others would blink off once the clock affect got to it. I have a video that shows it better than i can explain it so here it is: http://www.youtube.com/watch?v=nXIopYeB3-k&feature=youtu.be

It still works after i save and quit the world and play it again.

Edit: I went and built it again and it didn't have this issue; however, i built it by building all if the redstone first. It started to blink with the redstone when i added the torches last and then when i triggered the clock, all of the redstone lamps blinked when its turn was. I guess it is just the order of how things are triggered and made.

I think it has to do with the timing of where the clock is (on state wise) and when you place the first torch that can be powered off by the power of the redstone block.

Now, i think of this as a very minor bug since the person could fix it by doing what i did the second time making this.