Conflicting default values of ignoreCase and caseSensitive

[Cantor, Scott]

> So the default behavior has changed between 2.5.6 and 2.6.0. We should not
> depend on the default behavior, as the advisory said.

The default should be case insensitive. The default before was a bug, it was using case sensitive by mistake when it was being told to be case insensitive. The setting was right, the meaning was wrong.

-- Scott