subs get types - invalid static cache

Hi,

here just a simple patch to fix invalid static cache subs types.

First time we init subs types cache, we could only load one subs type if it was provided as argument and store it rather than all subs types).
In that way, if we try to load and render further subs, only first will be done and error occured in
subs controller buildContent() method (in #formatter property of the "types" field).