Caching issues with Machine Translations

[derayo94]

Describe the bug

When I toggle the machine translations feature on a participatory process "overview" page (The process tab), the machine translations are not displayed.

To Reproduce

See this repository for an example of a decidim app illustrating the issue.

See the README.md instructions to reproduce.

Expected behavior

I expect the machine translations toggle button to toggle between original text and automatically-translated text.

Screenshots

N/A

Stacktrace

N/A

Extra data

• Device: N/A
• Device OS: N/A
• Browser: N/A
• Decidim Version: 0.27.5
• Decidim installation: N/A

Additional context

I discovered that the caching mechanism does not take the machine translations into account when creating the cache hash. For example, see the decidim-proposals/app/cells/decidim/proposals/highlighted_proposals_for_component_cell.rb's cache_hash method.

Here is a solution that fixed my issue.

Is this expected ? Is there another official way to handle cache when using Machine Translations ?