proxy: disallow overriding mn command

When using CMD_ANY_STORAGE to enable the proxy this causes the MN
command to no longer work as intended; the proxy eats the command and
does not flush the client response pipeline.

1 files changed, 5 insertions, 0 deletions

diff --git a/proxy_lua.c b/proxy_lua.c
index f309515..2d38b8e 100644
--- a/proxy_lua.c
+++ b/proxy_lua.c
@@ -826,6 +826,11 @@ static int mcplib_attach(lua_State *L) {
 
         for (int x = loop_start; x < loop_end; x++) {
             struct proxy_hook *h = &hooks[x];
+            if (x == CMD_MN) {
+                // disallow overriding MN so client pipeline flushes work.
+                // need to add flush support before allowing override
+                continue;
+            }
             lua_pushvalue(L, 2); // duplicate the function for the ref.
 
             if (tag) {