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Clearing empty Set&Map should be noop #680

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Clearing empty Set&Map should be noop#680
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@nifgraup

Description

@nifgraup
nifgraup
opened on Oct 7, 2020

🐛 Bug Report

To Reproduce

const { produce, enableMapSet } = require("immer");
enableMapSet();
const map = new Map();
const newMap = produce(map, draft => { draft.clear(); });
map === newMap

Observed behavior

false

Expected behavior

true

Environment

  • Immer version:
  • I filed this report against the latest version of Immer
  • Occurs with setUseProxies(true)
  • Occurs with setUseProxies(false) (ES5 only)

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