Unfinished transition does not update bound variable

[Roboroads]

Describe the bug

When you use {#if} to transition out an element, but negate the if mid-transition, the transition does not finish and re-transitions to the shown state. If this happens, the variables that are bound to child components do not get updated when they were updated mid-transition.

Reproduction

https://svelte.dev/repl/0949cb362a444e5ca5792b1323b23af0?version=3.53.1

Logs

No response

System Info

System:
    OS: Linux 5.15 Ubuntu 22.04.1 LTS 22.04.1 LTS (Jammy Jellyfish)
    CPU: (16) x64 AMD Ryzen 7 3800X 8-Core Processor
    Memory: 15.18 GB / 31.30 GB
    Container: Yes
    Shell: 5.8.1 - /usr/bin/zsh
  Binaries:
    Node: 16.15.1 - ~/.nvm/versions/node/v16.15.1/bin/node
    Yarn: 3.2.1 - ~/.yarn/bin/yarn
    npm: 8.19.2 - ~/.nvm/versions/node/v16.15.1/bin/npm
  Browsers:
    Chrome: 107.0.5304.110
  npmPackages:
    svelte: ^3.53.1 => 3.53.1

Severity

annoyance

[Roboroads]

Currently working around it by surrounding all of my animated elements with {#key} so they get recreated.

[dummdidumm]

Fixed in Svelte 5