util.datamanager: Unreference file handle after closing it to prevent trying to close...

diff --git a/util/datamanager.lua b/util/datamanager.lua
index a107d95c26904a697a949157f8caa706ca46a696..c69ecd25dd3815a4db14a05285f73ac72bf1360d 100644 (file)
--- a/util/datamanager.lua
+++ b/util/datamanager.lua
@@ -152,6 +152,7 @@ local function atomic_store(filename, data)
                if not ok then break end
 
                ok, msg = f:close();
+               f = nil; -- no longer valid
                if not ok then break end
 
                return os_rename(scratch, filename);