No retain flag, I have cleared everything on the broker.
Looking at the subscription, only 1 message exists on the broker, gets repeated in node-red.
Test flow:
[{"id":"380b9424.fcc454","type":"mqtt in","z":"c0f7a95e.a66d08","name":"","topic":"test/testtopic","qos":"2","datatype":"auto","broker":"73843d1e.7f20dc","x":170,"y":160,"wires":[["a8b9efe1.03a4e"]]},{"id":"a75bc06d.f0bcd8","type":"mqtt out","z":"c0f7a95e.a66d08","name":"","topic":"test/testtopic","qos":"0","retain":"false","broker":"73843d1e.7f20dc","x":410,"y":260,"wires":[]},{"id":"a8b9efe1.03a4e","type":"debug","z":"c0f7a95e.a66d08","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":330,"y":160,"wires":[]},{"id":"cc1366c5.2d0998","type":"inject","z":"c0f7a95e.a66d08","name":"","topic":"","payload":"{\"test\":true}","payloadType":"json","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":180,"y":260,"wires":[["a75bc06d.f0bcd8"]]},{"id":"73843d1e.7f20dc","type":"mqtt-broker","z":"","name":"mqtt","broker":"10.0.0.202","port":"1883","clientid":"","usetls":false,"compatmode":true,"keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthRetain":"false","birthPayload":"","closeTopic":"","closeQos":"0","closeRetain":"false","closePayload":"","willTopic":"","willQos":"0","willRetain":"false","willPayload":""}]
Inject, single response.
Change mqtt-in to parsed JSON object, deploy, inject, 2 messages.
Change it again to auto-detect, 3 messages.
