Merging empty heading block into another causes unexpected behaviour

Dashibase / lotion

An open-source Notion UI built with Vue 3

GNU General Public License v3.0

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Closed vvidday closed 2 years ago

vvidday commented 2 years ago

merging an empty heading block into another results in "undefined" being added to the block being merged into.

video

![mergeintoheading-before](https://user-images.githubusercontent.com/45852430/182515128-8d34d2a4-4a45-40c7-800e-32213d7efc24.gif)

greentfrapp commented 2 years ago

Fixed by #36