diff --git a/lib/permissions/prefixes.js b/lib/permissions/prefixes.js
--- a/lib/permissions/prefixes.js
+++ b/lib/permissions/prefixes.js
@@ -97,6 +97,7 @@
     return false;
   } else if (
     !isMember &&
+    !parsed.propagationPrefix &&
     parsed.membershipPrefix === threadPermissionMembershipPrefixes.MEMBER
   ) {
     return false;