[PATCH v2 8/9] user32: Invalidate cache in update_monitor_cache when modification time matches current time.

[Jacek Caban]

Also preserve last error.

Signed-off-by: Jacek Caban <jacek(a)codeweavers.com>
---
This fixes a pre-existing problem with current code that we start to hit 
in monitor tests with the next patch. My plan is to get rid of 
update_monitor_cache and entire monitor cache in user32. This will 
ultimitely solve the problem, but I don't want to make this series longer.

  dlls/user32/sysparams.c | 5 +++--
  1 file changed, 3 insertions(+), 2 deletions(-)