v1.2.2: bugfix change detection

watchdog.go

@@ -81,6 +81,7 @@ func (d *Dog) watch() {
 		return
 	}
 
+	changed := d.changed
 	time.Sleep(time.Duration(5) * time.Second)
 
 	err2 := d.check()
@@ -108,7 +109,8 @@ func (d *Dog) watch() {
 		// TODO what if the server is flip-flopping rapidly?
 		// how to rate limit?
 		// "{{ .Server }} is on cooldown for 30 minutes"
-		if d.changed {
+		if changed {
+			changed = false
 			d.notify("went down")
 			if StatusUp == d.status {
 				break