Describe the bug
When property cropSize is changed in same time as zoom, computeSizes is not called. So state of cropSize is not updated.
Expected behavior
If property cropSize has changed, it will update Resizer state cropSize

We are using onMediaLoaded callback to calculate zoom and cropSize. Also we use range sliders to manipulate width, height, zoom.
I tried move condition in componentDidUpdate to be separately and called everytime when cropSize changed and it helps. Should I create PR for this?
