[PATCH] server: Fix setting context flags in get_thread_context.

[Jacek Caban]

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=49011
Signed-off-by: Jacek Caban <jacek(a)codeweavers.com>
---
  dlls/kernel32/tests/thread.c | 15 +++++++++++++++
  server/thread.c              |  2 +-
  2 files changed, 16 insertions(+), 1 deletion(-)