What happened to U3 at the top left in the image of the flash chip? Looks like they had a footprint for a diode in a 3-pin SOT23 package and found they didn't

What happened to U3 at the top left in the image of the flash chip? Looks like they had a footprint for a diode in a 3-pin SOT23 package and found they didn't have stock of the special part, so they installed a SOD323 diode at a 30 degree angle across two pins...