[BUG] Project management - Unable to set the same team for mapper and validator permission

[Patrik-Br]

Describe the bug
I am creating a private project and I can't set the same team for mapping and validation. When I do so, I get an error message "Saving the project failed because of a Server Error. Please try again later or contact the administrator if problem persists."
I believe for my case with a private project currently the correct solution is to set the validation permission for "Only team members", under teams add my team with a "Validator" role and put mapping permission for "Any user" so since it is a private project it will be visible only to members of the team with validation permission??

To Reproduce
Steps to reproduce the behavior:

1. Create a private project
2. In project settings - Permissions add the same team for mapper and validator role
3. Click "Save"
4. See the error message

Expected behavior
Be able to set the same team for Mapper and Validator role.

Screenshots examples from https://tasks-stage.hotosm.org/projects/18444/
The error message

The "current hopefully working solution" I described

Desktop (please complete the following information):

• OS: Windows 11 Version 24H2 (Build 26100.6899)
• Browser: Vivaldi 7.7.3851.52 (Official Build) (64-bit)
• HOT TM Version: v5.3.1

[linear]

TECH-849

[ramyaragupathy]

@prabinoid is looking into this issue. It is reproducible.