`taf repo status`: `AttributeError` when checking branches containing commit

[n-dusan]

taf repo status crashes with AttributeError: 'str' object has no attribute 'hash' when checking target repositories status.

Steps to reproduce:

taf repo status --path <path-to-auth>

**Error:**

File "C:\Users\nikol\Envs\olldev\lib\site-packages\taf\git.py", line 518, in branches_containing_commit
local_branches = list(repo.branches.local.with_commit(commit.hash))
AttributeError: 'str' object has no attribute 'hash'

Root cause:

In taf/git.py:518, the code expects commit to be an object with a hash attribute, but receives a string instead.