msi: If a feature's action is INSTALLSTATE_UNKNOWN, MsiEvaluateCondition should return MSICONDITION_FALSE

[James Hawkins]

Hi,

Fixes a quirk in the Steam installer.

Changelog:
* If a feature's action is INSTALLSTATE_UNKNOWN, MsiEvaluateCondition
should return MSICONDITION_FALSE.

 dlls/msi/cond.y          |    6 +++++-
 dlls/msi/tests/package.c |    7 +++++++
 2 files changed, 12 insertions(+), 1 deletions(-)

-- 
James Hawkins
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