Xporter doesn't work correctly when you have numbers in the key of the project

Short description: Xporter doesn't work correctly when you have numbers in the key of the project

Steps to reproduce:

1. Create a project with key TQA2
2. Create some issues in the new project
3. Go to advanced search and use this JQL "project = TQA2"
4. Open Xporter - Bulk export

Actual Result: The following message "Something went wrong" appears

Expected Result: It should be possible to export the templates I have installed.