Difference between imported and source variable - Inventories

Hello,

I have a question about imported inventory variables.
Our context :
The imported Project is on a Git SCM and variables files are on YAML format.
I have created an “classic” inventory whose source is based on a Project. host_vars, group_vars and global_vars (folder “all” into group vars) are imported and loaded correctly, except one detail. AWX add quotes on the keys of the following block :
On Gitlab I have this :

(attachments)

Hello,

Thanks for reaching out on list. We think this merits an issue on our Github, https://github.com/ansible/awx/issues. If you could open an issue up on Github it will get tagged and integrated into our planning and workflow. All future work will be tracked there. Issues should include as much information as possible, including screenshots, log outputs, or any reproducers.

Thanks,

AWX Team