getRepositoryTree not working with just ref parameter

[abidahmadq]

GET /api/v4/projects/$proj_no/repository/tree?per_page=100&path=&ref=$branch_name&recursive=True
Doesn't work for branch_name other than master.
But using these 2 queries work ->

1. GET /api/v4/projects/$proj_no/repository/tree?per_page=100&path=&ref=$branch_name&recursive=True (ie adding a \ before =)

2. GET /api/v4/projects/$proj_no/repository/tree?per_page=100&path=&ref_name=$branch_name&recursive=True (ie using ref_name inplace of ref)

I have tested it. Please check if someone can reproduce it.
I can start working on a fix if the problem exists.

[abidahmadq]

@timols