Merge remote-tracking branch 'origin/wjc' into release0123

wxr

2022-04-14 f48b20ee2ed48652ff4f0bfcdc2cfb8b9340685c

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#import <Foundation/Foundation.h>
@interface PodsDummy_MQTTClient : NSObject
@end
@implementation PodsDummy_MQTTClient
@end