Do not send MSP command if previous reply didn't arrive yet

Author: atomgomba

src/SCRIPTS/BF/features_info.lua

@@ -8,13 +8,15 @@ local isOsdSDRead = false
 
 local lastRunTS = 0
 local INTERVAL = 100
+local isInFlight = false
 
 local returnTable = {
     f = nil,
     t = "",
 }
 
 local function processMspReply(cmd, payload, err)
+    isInFlight = false
     local isOkay = not err
     if cmd == MSP_GPS_CONFIG then
         isGpsRead = true
@@ -45,8 +47,9 @@ local function updateFeatures()
             cmd = MSP_OSD_CONFIG
             returnTable.t = "Checking OSD (SD)..."
         end
-        if cmd then
+        if cmd and not isInFlight then
             protocol.mspRead(cmd)
+            isInFlight = true
         end
     end
     mspProcessTxQ()