Ensure that we capture sender even if thrown error is falsey

js/modules/metadata/SecretSessionCipher.js

@@ -416,6 +416,11 @@ SecretSessionCipher.prototype = {
         content: await _decryptWithUnidentifiedSenderMessage(content),
       };
     } catch (error) {
+      if (!error) {
+        // eslint-disable-next-line no-ex-assign
+        error = new Error('Decryption error was falsey!');
+      }
+
       error.sender = address;
 
       throw error;