Thanks for all the switft work. Here's my understanding of the situation:

7.6.2 has a bug (#7748) in it, which also appears in a lesser form in 7.6.1.
SPJ has a fix, that works for the minimal code given in the bug report.
Others are now trying to verify it fixes the bug as it was discovered in the wild, in the hets package.
Assuming it does fix, Ian will prepare a 7.6.3 release which is just this bug fix as a delta from 7.6.2.

If that is the state of the world, then we'll delay the HP 2012.2.0.0 a week for 7.6.3.

- Mark