(bug 63901) Fix stored CU data by adding version number & revision id

I2b4df3704f1eff53d8aa473aee404c0068a7b8b8 improved how CU data is processed, but
the data being stored has not yet been updated to match what is now expected in
CheckUser formatter.

Bug: 63901
Change-Id: I7e584f9f9da4217e0c361f0f05a0ab6201e56d4a