Fixed a race condition leading to a crash on server shutdown on linux
Fixed a race condition leading to a crash on server shutdown on linux

Fixes bugreport:7699, thanks to bgamez23 (bugreport), Ind (testing,
brainstorming)
http://hercules.ws/board/tracker/issue-7699-map-crashed-on-the-latest-version/

Signed-off-by: Haru <f7976dc425bcce048120127956a7ec59259f4452@dotalux.com>

Nipol/Siesta,Nipol/Siesta,Nipol/Siesta