withDecay() never starts if initial value is 0

[gaearon]

Description

The withDecay animation never starts if the initial value is 0.

import React from 'react';
import {Pressable, Text} from 'react-native';
import Animated, {
  useAnimatedStyle,
  useSharedValue,
  withDecay,
} from 'react-native-reanimated';

export default function App() {
  const translateY = useSharedValue(0); // <------- if you change it to 1, it'll work
  const style = useAnimatedStyle(() => ({
    transform: [{translateY: translateY.value}],
  }));
  return (
    <>
      <Pressable
        style={{padding: 100, fontSize: 50, backgroundColor: 'purple'}}
        onPress={() => {
          translateY.value = withDecay({
            velocity: 200,
          });
        }}>
        <Text>open</Text>
      </Pressable>
      <Animated.View
        style={[
          {
            backgroundColor: 'blue',
            width: 100,
            height: 100,
          },
          style,
        ]}
      />
    </>
  );
}

withdecay.mov

Steps to reproduce

See above, pretty easy repro.

Seems to affect both iOS and Android.

Testing on Paper, not sure about Fabric.

Snack or a link to a repository

https://github.com/gaearon/reanimated-repro-weird/commits/withdecay-bug (note the branch!)

Reanimated version

3.16.1

React Native version

0.76.1

Platforms

Android, iOS

JavaScript runtime

Hermes

Workflow

React Native

Architecture

Paper (Old Architecture)

Build type

Debug app & dev bundle

Device

Android emulator

Device model

No response

Acknowledgements

Yes

[gaearon]

There's gotta be a if (!sharedValue.value) somewhere, isn't it?