"grid-template-columns: 50% auto" may not work properly for history-graph & markdown

Consider this code for a custom layout-card:

type: custom:layout-card
layout_type: custom:grid-layout
layout:
  grid-template-columns: 50% auto
cards:
  - type: history-graph
    entities:
      - sun.sun
  - type: history-graph
    entities:
      - sun.sun

The “50% auto” layout is supposed to be treated as “50/50”, right?
And this is what I see in Editor:

But not what I see in a view:
403180452-4a2e63e2-c38c-435b-840d-de7c86e415f9

Observed in Chrome 131.0.6778.265 (Win10), FF 133.0.3 (Win10). iOS Companion App (iOS 15.x).

Have to define “50% 50%” explicitly - then it gives a desired effect:
403180680-10a99fc7-23c2-45a4-b024-00dcfa35a337

Interestingly this glitch does not occur with Entities card:
403180889-008a1c2c-cc37-43d0-b474-eb07cd2f7098
And with Glance card:
image

Created this issue in layout-card repo.

But may be it should be solved in Frontend, not sure.
The “auto” value works for Entities card, but not for History-graph.

That is why I created this post in “Configuration - Frontend” section instead of a dedicated layout-card thread - I have a very very very tiny hope that someone from HA dev team will notice it (and a much smaller hope that will react).


Same glitch with Markdown:
image

Created an issue in Frontend with the same tine hope.