Custom blocks change type when dragging.

[devtestersweden]

Describe the bug
When I drag custom blocks and try to reorder them I get a strange issue.
Lets say I have 2 custom blocks. when I drag one of them to reorder to place it underneath another the custom block will morph into the custom block that was above,

lets say I have

To Reproduce
Add 2 custom blocks of different types to the editor. drag the custom block right below the other. occasionally (quite often) the custom block that I dragged will turn into the other,

Misc

• Node version: 0.24.1
• Package manager: npm
• Browser: arc

[matthewlipski]

Hi, I wasn't able to reproduce this locally unfortunately - could you provide a sandbox which shows this issue?

[Aichnerc]

Same here. If I drag custom blocks to another block, it sometimes becomes an exact clone of this block.

Using Version 0.25.2

[nperez0111]

Can either of you share a reproducible example? I think this might just be related to html serialization of the custom block (perhaps your parsers are matching the same element).