unknown version warning

[dcsaki]

Hi,
I am new to kubetest, and loving it so far! This may be just a newbie usage problem, but on any test failure, I am getting multiple warning messages from api_object related to unknown version (see example below).
I traced the first warnings to the creation of the namespace related to the test case.

These warnings do not have any impact on my tests, since the preferred version is used, but it does have an impact on the readability of logs.
Am a missing some setting to avoid these warnings? If not, in my opinion the warnings should be removed or changed to debug messages.

----------------------------- Captured log setup ------------------------------
WARNING kubetest:api_object.py:111 unknown version (None), falling back to preferred version
------------------------------ Captured log call ------------------------------
WARNING kubetest:api_object.py:111 unknown version (None), falling back to preferred version
WARNING kubetest:api_object.py:111 unknown version (None), falling back to preferred version