If an instance has multiple users with the same email,
getUserByEmail retrieves only the user who was created first.
Return a user matching the specified email address.
This affects user fields synchronization since Exalate uses API to search by email. Therefore, make sure that the email is visible for the Exalate app in the Atlassian account.
For the method to work on Azure DevOps, make sure that the user is part of the team that has access to the Azure DevOps project.
The Signature introduced in 0.8 works for Azure DevOps until version 5.4.0.