fix fixme

pallets/duniter-wot/src/lib.rs

@@ -246,8 +246,9 @@ impl<T: Config<I>, I: 'static> sp_membership::traits::CheckIdtyAllowedMembership
                 idty_value.status == IdtyStatus::Validated,
                 Error::<T, I>::IdtyNotAllowedToRenewMembership
             );
+        } else {
+            return Err(Error::<T, I>::IssuerNotFound.into());
         }
-        // FIXME what if identity not found?
         Ok(())
     }
 
@@ -259,8 +260,9 @@ impl<T: Config<I>, I: 'static> sp_membership::traits::CheckIdtyAllowedMembership
                 T::IsSubWot::get() && idty_value.status == IdtyStatus::Validated,
                 Error::<T, I>::IdtyNotAllowedToRequestMembership
             );
+        } else {
+            return Err(Error::<T, I>::IssuerNotFound.into());
         }
-        // FIXME what if identity not found?
         Ok(())
     }
 }