It appears that I'm stuck in a situation where -rescan does nothing. I assume it did nothing because it happened so quickly. I'm just 19 hours behind the network, so there should be a lot of data to scan.
The log reads:
2015-12-25 20:07:50 init message: Rescanning... 2015-12-25 20:07:50 Rescanning last 390031 blocks (from block 0)... 2015-12-25 20:07:50 rescan 47ms 2015-12-25 20:07:50 init message: Activating best chain...
And command line was:
bitcoin-qt.exe -rescan
I'm rescanning as part of a wallet salvage operation. The wallet file might be broken. It underwent salvage.
This is 0.11.2.