I´m having a similar issue.
We use the FreePBX `Call Forward Toggle´ feature code to set CF and the extensions_override_fop2.conf does not cover this feature code, so updates to CF status via this feature code are not reflected in FOP2.
The generate_override_contexts.pl script only adds dialplan logic for ´Call Forward All Activate´ and for ´Call Forward All Deactivate´.
Is there a fix for this issue? We really need to use the toggle feature code...