attempt 2

Author: tsomaev

Sources/RxKeyboard/RxKeyboard.swift

@@ -115,8 +115,10 @@ public class RxKeyboard: NSObject, RxKeyboardType {
 
     // merge into single sequence
     Observable.of(didPan, willChangeFrame, willHide).merge()
-      .bind(to: frameVariable)
-      .disposed(by: self.disposeBag)
+        .subscribe(onNext: { [weak frameVariable] frame in
+            frameVariable?.accept(frame)
+        })
+        .disposed(by: self.disposeBag)
 
     // gesture recognizer
     self.panRecognizer.delegate = self