Svelte 5.1.5 actions are not triggered when a snippet is declared inside the node

[PierBover]

Describe the bug

If a snippet is declared inside a node with an action, this action will not be triggered when the node is added to the DOM.

This bug was introduced in 5.1.5. Our app uses a couple of custom actions and everything works as expected up to 5.1.4.

Reproduction

https://svelte.dev/playground/1192da14055c4d5e87703a849e77d38b?version=5.1.6

Logs

No response

System Info

System:
    OS: macOS 13.6.7
    CPU: (12) arm64 Apple M2 Pro
    Memory: 265.52 MB / 16.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 20.13.1 - /usr/local/bin/node
    npm: 10.5.2 - /usr/local/bin/npm
  Browsers:
    Chrome: 130.0.6723.70
    Chrome Canary: 132.0.6809.0
    Safari: 17.5
  npmPackages:
    svelte: ^5.1.5 => 5.1.5

Severity

blocking all usage of svelte

[PierBover]

Thanks @trueadm and @dummdidumm !

Just installed 5.1.8 and confirmed it's fixed.