Errors occur when store dependents rely on passed data AND direct data from store

[jacwright]

When store data is set, the store updates each dependent in turn. This can cause errors when a child of a dependent earlier in the array of dependents is updated by its parent because store data is passed to it (for example, when iterating over an array of data). The child will have fresh data passed in but stale data from the store because it hasn't been updated yet.

Example: https://svelte.technology/repl?version=2.7.0&gist=66f200b11052eae7c6f45fc99a4a96c8

A thought on how to fix this is to update the context/data of each item in once pass and then do another render pass. This should also eliminate multiple re-renders that will occur by the user working around the above issue.

[Rich-Harris]

Released 2.13.2 with the fix — closing