If a language has both (a) reflexive construction with the true passive meaning and (b) special (e.g., analytical participial) forms for the passive voice, the constraints concerning the agentive object (if there are any) are likely to affect the passive of type (a) rather than type (b).
Standardized
IF a language has both (a) a reflexive construction with true passive meaning and (b) special (e.g., analytical participial) forms for the passive voice, THEN constraints concerning the agentive object (if there are any) are likely to affect the passive of type (a) rather than type (b).
Cf. Romance languages and Georgian.