inf_adopted_request_log_original_request: Return given request for DO requests
inf_adopted_request_log_original_request: Return given request for DO requests

This fixes transforming the move request that InfTextUndoGrouping uses to
determine whether to group two requests or not with the new algorithm.

gobby/libinfinity,tyll/libinfinity,gobby/libinfinity,tyll/libinfinity,gobby/libinfinity,tyll/libinfinity