Copying posts with Jetpack doesn't preserve Neve's palette colors

[irinelenache]

Description

If you use the copy feature from Jetpack, the custom colors added to blocks will be preserved while the Neve's palette colors won't. I see the issue is happening when the colors are added to Ultimate blocks and Otter blocks and it's working fine with default blocks, like paragraph.

Other tests:

• I also tested using Jetpack and Twentytwenty theme and the selected theme colors were preserved in that context.
• I also tested copying with Duplicate post and Neve and the selected colors were preserved in that context

Initial post - https://vertis.d.pr/i/2tRaPG Copy - https://vertis.d.pr/i/0LttVp

Support ticket - https://secure.helpscout.net/conversation/2450560827/396577?folderId=212385

Step-by-step reproduction instructions

1. Install Jetpack and activate the copy feature
2. Install Otter and add two buttons to a post
3. For one button select custom colors, for the other button select Neve colors
4. Copy the post and check if the colors are preserved

Screenshots, screen recording, code snippet or Help Scout ticket

Initial post - https://vertis.d.pr/i/2tRaPG Copy - https://vertis.d.pr/i/0LttVp

Support ticket - https://secure.helpscout.net/conversation/2450560827/396577?folderId=212385

Environment info

WordPress 6.4.2 / Neve 3.7.4 / Jetpack 12.9

Is the issue you are reporting a regression

No