Canon A-1 is stock in buld 32 in Tv mode, how I can fix this?

Canon A-1 is stock in bulb 32 in Tv mode, how i can fix this? I rotated the AT dial but not change the values on the display. The 32 flashes to.

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I take the picture but the camera stay open all in Tv mode. I dont know if this is normal.

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