genshi xi:include cache issue

[webguy7890]

I seem to be having some caching issue with genshi when i include 2
different files in 2 different directories with with the same name.
example:

templates/example_a/index.html
templates/example_a/_form.html <-- contains a_form()
templates/example_b/index.html
templates/example_b/_form.html <-- contains b_form()

i have two controllers, one for a, one for b:
when i visit the first controller, it will render fine, whether
it's a or b.
when i visit a as the second controller, it will say b_form() not
defined.. conversely, if i visit b as the second controller, it will
say a_form() not defined.

my guess is that the template gets cached and it can't distinguish
them with just its name. so i change the xi:include to be "../
example_a/_form.html" and "../example_b/_form.html" instead of just
"_form.html" and it worked. is this the best way to do this? or i
guess i could name it a_form.html and b_form.html. thanks.