New Units (dvh/dvw) from theme.json do not appear under Dimensions > Fixed Height in child group/row/stack blocks

[jhmonroe]

Description

Units from theme.json do not appear under Dimensions > Fixed Height in group blocks

I noticed a bug today (6.7.1) where it also doesn't completely work for theme.json + dimensions opting in (this testing was for row/stack/group blocks inside a parent stack)

see attached screenshot showing it recognizes dvh/dvw for padding and minimum height, but not for the fixed height value (presumably height>fixed height should pull from the same declaration in theme.json since these are all the Dimensions options pulling from Settings > Spacing >

"units": [ "%", "px", "em", "rem", "vh", "vw", "dvh", "dvw" ]

I had a hard time finding anything about Fixed Height in the Documentation for either Dimensions or Group Block.
Per usual, I turn to Carolina's FSE site when I'm stumped: https://fullsiteediting.com/lessons/remove-settings-in-theme-json/
😄

Research:

Following the trail of this units opt-in journey led me here and the PR's that are linked within:
#52441
#54415
Perhaps they forgot one spot when tweaking?
Perhaps this issue is really part of the UnitControl component? https://developer.wordpress.org/block-editor/reference-guides/components/unit-control/

Step-by-step reproduction instructions

1. Add your dvh and dvw units to theme.json (I added in Settings > Spacing > Units)
2. Add a group/row/stack nested inside another group/row/stack
3. Select the child block and go into the styles sidebar
4. The new units correctly show up in sliders such as block gap, padding, and even min height
5. The new units do not show up in the Dimensions > Height > Fixed

Screenshots, screen recording, code snippet

Environment info

• Wordpress 6.7.1
• Firefox 133
• Tested in both Local (PHP 8.1.29) and Siteground web host ("ultrafast" PHP 8.2.26) environments

Please confirm that you have searched existing issues in the repo.

• Yes

Please confirm that you have tested with all plugins deactivated except Gutenberg.

• Yes

Please confirm which theme type you used for testing.

• Block
• Classic
• Hybrid (e.g. classic with theme.json)
• Not sure