Adding temporary workaround in Darwin for XPC clients not adding delegates (#38159)

* Adding temporary workaround

* Restyled by whitespace

* Restyled by clang-format

---------

Co-authored-by: Restyled.io <commits@restyled.io>

Author: woody-apple

src/darwin/Framework/CHIP/MTRDevice_XPC.mm

@@ -130,7 +130,7 @@ - (NSString *)description
                      wifi,
                      thread,
                      _deviceController.uniqueIdentifier,
-                     (unsigned long) self.state];
+                     (unsigned long) [MTR_SAFE_CAST(self._internalState[kMTRDeviceInternalPropertyDeviceState], NSNumber) unsignedLongValue]];
 }
 
 - (nullable NSNumber *)vendorID
@@ -372,8 +372,14 @@ - (void)_updateInternalState:(NSMutableDictionary *)newState
 
 - (MTRDeviceState)state
 {
+    // TEMPORARY WORKAROUND for UNTIL WE HAVE the addDelegate flow fixed
+    if (![self delegateExists]) {
+        return MTRDeviceStateReachable;
+    }
+
     NSNumber * stateNumber = MTR_SAFE_CAST(self._internalState[kMTRDeviceInternalPropertyDeviceState], NSNumber);
     switch (static_cast<MTRDeviceState>(stateNumber.unsignedIntegerValue)) {
+    default:
     case MTRDeviceStateUnknown:
         return MTRDeviceStateUnknown;