Inconsistent Whitespace Trimming

[the0neWhoKnocks]

Describe the bug

Whitespace sometimes gets trimmed within if blocks.

With this code:

{#if name}- {#if txt}({txt}) {/if}{name}{/if}

I used to get

- (25) Title Text

Now I get

- (25)Title Text

The first if prints the whitespace, but the second inner if does not.

Reproduction

Repl: Inconsistent Whitespace Trimming

Logs

System Info

Doesn't matter, whitespace being trimmed by compiler.

Severity

annoyance

[dummdidumm]

This works as expected, whitespace in Svelte 5 is always trimmed around the edges. See the migration guide for more details

You can work around it by e.g. adding a {' '}.
You can use the new whitespace trimming logic to your advantage to make your code more readable; in your example the resulting code would be

{#if epName}
  -
  {#if epNumCombined}
    ({epNumCombined}){' '}
  {/if}
  {epName}
{/if}

[the0neWhoKnocks]

I read through the guide before posting, I'd argue what I demonstrated isn't expected. If "the edges" are trimmed, then why is the first {#if epName}- not trimmed as well? It appears to be the same as {#if epNumCombined}({epNumCombined}) to me (aside for the character type/length).

Adding {' '} pops up the https://sveltejs.github.io/eslint-plugin-svelte/rules/no-useless-mustaches/ lint warning.

Visually, I'm concatenating to create a text blurb. To me, having it on one line is more readable than the code block you posted. Also, in the block you posted, {' '} isn't needed since new lines automatically add extra space between items.

My title states "inconsistent". The fact that the first #if isn't trimmed the same as the second, is why I created the issue.