Author filter only shows "All" and cannot render tree

[anonymous]

I initially had the problem mentioned in #4471 and applied the fix in the model.py but now every time I try to use Revtree I always get "Selected filters cannot render a revision tree". The Branch filter has options "All" and "trunk" (trunk is option after I added the optional configuration specified in the plugin page). The Author filter only contains "All" although the Revision filter shows the correct latest number. Am I missing something here? Thank you.