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Fix: Delete key on empty heading transforms following paragraph into heading #78779

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Merged
ellatrix merged 15 commits into from
Aug 13, 2026
+65 −1
Merged

Fix: Delete key on empty heading transforms following paragraph into heading #78779

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03329e5
fix: improve block merging behavior for empty blocks
coderGtm May 28, 2026
6209531
test: add tests for empty block removal merge behavior
coderGtm May 28, 2026
61fb091
Merge branch 'trunk' into fix/heading-block-delete-flow
coderGtm May 28, 2026
671b18c
Merge branch 'trunk' into fix/heading-block-delete-flow
coderGtm May 29, 2026
e826df6
Merge branch 'trunk' into fix/heading-block-delete-flow
coderGtm Jun 9, 2026
44531a2
fix: refine block merging logic for empty blocks
coderGtm Jun 10, 2026
34d9b45
fix: enhance merging behavior for nested list items during deletion
coderGtm Jun 10, 2026
27a3d1c
Merge branch 'trunk' into fix/heading-block-delete-flow
coderGtm Jun 10, 2026
d132e07
fix: update tests for refined logic
coderGtm Jun 10, 2026
08d1191
Restore the nested list item merge behaviour
ellatrix Aug 12, 2026
efd3799
Match the sibling guard when removing an empty block
ellatrix Aug 12, 2026
bef8476
Cover forward deleting an empty heading end to end
ellatrix Aug 12, 2026
1135e6c
Merge remote-tracking branch 'origin/trunk' into pr-78779
ellatrix Aug 12, 2026
bc3bf85
Fold the empty block into the unmodified default guard
ellatrix Aug 12, 2026
e06b84f
Only treat text blocks as removable when empty
ellatrix Aug 12, 2026
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Cover forward deleting an empty heading end to end 
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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@ellatrix @claude
ellatrix and claude committed Aug 12, 2026
commit bef8476d7fe5ccf1fdbe788a9c62198b2777097c
29 changes: 29 additions & 0 deletions test/e2e/specs/editor/various/splitting-merging.spec.js
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Original file line number Diff line number Diff line change
Expand Up @@ -242,6 +242,35 @@ test.describe( 'splitting and merging blocks (@firefox, @webkit)', () => {
);
} );

test( 'should forward delete an empty heading without transforming the next block', async ( {
editor,
page,
} ) => {
await editor.insertBlock( { name: 'core/heading' } );
await page.keyboard.press( 'Enter' );
await page.keyboard.type( 'My paragraph' );
await page.keyboard.press( 'ArrowUp' );

await expect.poll( editor.getBlocks ).toMatchObject( [
{ name: 'core/heading', attributes: { content: '' } },
{
name: 'core/paragraph',
attributes: { content: 'My paragraph' },
},
] );

await page.keyboard.press( 'Delete' );
// The caret lands at the start of the surviving paragraph.
await page.keyboard.type( '‸' );

await expect.poll( editor.getBlocks ).toMatchObject( [
{
name: 'core/paragraph',
attributes: { content: '‸My paragraph' },
},
] );
} );

test( 'should remove empty paragraph block on backspace', async ( {
editor,
page,
Expand Down