import MatDatepickerModule with "Redux DevTools" chrome extension causes an error and app ...

toJSON (<anonymous>) at Object.eval (_ctx.js:18) at derez (<anonymous>:2:5451) at derez (<anonymous>:2:6072) at derez (<anonymous>:2:6072) at derez (<anonymous>:2:6072) at derez (<anonymous>:2:5890) at derez (<anonymous>:2:6072) at derez (<anonymous>:2:6072) at derez ...

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