[playlikeboy]

Summary

Converting a Block to a Tool that declares per-field sanitize rules removes all inline formatting from the text: bold, italic and links are lost. The same happens when two Blocks of different Tools are merged with Backspace. This is the "Convert to" part of #2814.

Root cause

A Block Tool's sanitize config describes its data fields:

static get sanitize() {
  return { text: { b: true }, caption: false };
}

BlockManager.convert() and the different-Tools branch of BlockManager.mergeBlocks() passed this config to clean() as the rules for the exported string. HTMLJanitor then reads text and caption as tag names, finds no rule for b, i or a, and strips them. Tools without a sanitize getter are not affected, because their config is the flat inline-tools config.

Changes

• src/components/modules/blockManager.ts: the exported string is first imported into the target Tool's data with convertStringToBlockData(), and that data is sanitized with sanitizeBlocks(), the same way as on saving. Both convert() and mergeBlocks() use one private helper for this. Tags the target field does not allow are still removed.
• test/cypress/tests/api/blocks.cy.ts: test that blocks.convert() keeps <b> and removes <u> for a Tool with sanitize: { text: { b: true } }.
• docs/CHANGELOG.md line and package.json bumped to 2.32.0-rc.4 (I'll re-bump if fix(sanitizer): merge sanitize rules for the same tag instead of overwriting them #3041 or fix(inline-toolbar): make tool shortcuts work with several Editors on a page #3048 lands first).

Related issue

#2814 (the conversion part; the note there about save not cleaning the data is not covered)

Testing

• eslint on the changed files: no errors.
• vite build --mode test: passes.
• I could not run Cypress locally (my machine has no Xvfb), so CI is the first real run of the new test. I checked the behaviour by driving the built UMD bundle in headless Chrome. Source text: plain <b>bold</b> <i>italic</i> <a href="https://editorjs.io">link</a>.

Case	next	this branch
convert to a Tool with sanitize: { text: { b, i, a }, caption: false }	plain bold italic link	formatting kept
convert to a Tool with sanitize: { text: {}, caption: false } and the inline toolbar on	plain bold italic link	formatting kept
convert to a Tool without sanitize	formatting kept	formatting kept
Backspace-merge merged <b>bold</b> <u>underlined</u> into a Tool with sanitize: { text: { b: true } }	merged bold underlined	merged <b>bold</b> underlined

🤖 Generated with Claude Code